ETH Price: $2,530.38 (+0.75%)

Transaction Decoder

Block:
22644356 at Jun-06-2025 08:26:11 AM +UTC
Transaction Fee:
0.000039945155925394 ETH $0.10
Gas Used:
39,478 Gas / 1.011833323 Gwei

Emitted Events:

12 TransparentUpgradeableProxy.0xddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef( 0xddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef, 0x000000000000000000000000e3792a9c235d434b702023b33f03c48c41631090, 0x00000000000000000000000050bb0551a12c04ad647fe46c3e9a241e19ebad2f, 0000000000000000000000000000000000000000000001d06a61e890a8e8ac00 )

Account State Difference:

  Address   Before After State Difference Code
0x0fc2a55d...eFe66f467
(Lido: Execution Layer Rewards Vault)
95.686873817055518553 Eth95.686875425449916239 Eth0.000001608394397686
0xe3792A9c...C41631090
(Upbit Dep: 0xe3792A9c235D434B702023b33F03C48C41631090)
451.724017912598988793 Eth
Nonce: 56478
451.723977967443063399 Eth
Nonce: 56479
0.000039945155925394

Execution Trace

TransparentUpgradeableProxy.a9059cbb( )
  • LATokenMintable.transfer( to=0x50bb0551a12c04AD647fE46c3E9a241E19ebaD2f, value=8566954913950000000000 ) => ( True )
    File 1 of 2: TransparentUpgradeableProxy
    // SPDX-License-Identifier: MIT
    // OpenZeppelin Contracts (last updated v5.2.0) (proxy/transparent/TransparentUpgradeableProxy.sol)
    pragma solidity ^0.8.22;
    import {ERC1967Utils} from "../ERC1967/ERC1967Utils.sol";
    import {ERC1967Proxy} from "../ERC1967/ERC1967Proxy.sol";
    import {IERC1967} from "../../interfaces/IERC1967.sol";
    import {ProxyAdmin} from "./ProxyAdmin.sol";
    /**
     * @dev Interface for {TransparentUpgradeableProxy}. In order to implement transparency, {TransparentUpgradeableProxy}
     * does not implement this interface directly, and its upgradeability mechanism is implemented by an internal dispatch
     * mechanism. The compiler is unaware that these functions are implemented by {TransparentUpgradeableProxy} and will not
     * include them in the ABI so this interface must be used to interact with it.
     */
    interface ITransparentUpgradeableProxy is IERC1967 {
        /// @dev See {UUPSUpgradeable-upgradeToAndCall}
        function upgradeToAndCall(address newImplementation, bytes calldata data) external payable;
    }
    /**
     * @dev This contract implements a proxy that is upgradeable through an associated {ProxyAdmin} instance.
     *
     * To avoid https://medium.com/nomic-labs-blog/malicious-backdoors-in-ethereum-proxies-62629adf3357[proxy selector
     * clashing], which can potentially be used in an attack, this contract uses the
     * https://blog.openzeppelin.com/the-transparent-proxy-pattern/[transparent proxy pattern]. This pattern implies two
     * things that go hand in hand:
     *
     * 1. If any account other than the admin calls the proxy, the call will be forwarded to the implementation, even if
     * that call matches the {ITransparentUpgradeableProxy-upgradeToAndCall} function exposed by the proxy itself.
     * 2. If the admin calls the proxy, it can call the `upgradeToAndCall` function but any other call won't be forwarded to
     * the implementation. If the admin tries to call a function on the implementation it will fail with an error indicating
     * the proxy admin cannot fallback to the target implementation.
     *
     * These properties mean that the admin account can only be used for upgrading the proxy, so it's best if it's a
     * dedicated account that is not used for anything else. This will avoid headaches due to sudden errors when trying to
     * call a function from the proxy implementation. For this reason, the proxy deploys an instance of {ProxyAdmin} and
     * allows upgrades only if they come through it. You should think of the `ProxyAdmin` instance as the administrative
     * interface of the proxy, including the ability to change who can trigger upgrades by transferring ownership.
     *
     * NOTE: The real interface of this proxy is that defined in `ITransparentUpgradeableProxy`. This contract does not
     * inherit from that interface, and instead `upgradeToAndCall` is implicitly implemented using a custom dispatch
     * mechanism in `_fallback`. Consequently, the compiler will not produce an ABI for this contract. This is necessary to
     * fully implement transparency without decoding reverts caused by selector clashes between the proxy and the
     * implementation.
     *
     * NOTE: This proxy does not inherit from {Context} deliberately. The {ProxyAdmin} of this contract won't send a
     * meta-transaction in any way, and any other meta-transaction setup should be made in the implementation contract.
     *
     * IMPORTANT: This contract avoids unnecessary storage reads by setting the admin only during construction as an
     * immutable variable, preventing any changes thereafter. However, the admin slot defined in ERC-1967 can still be
     * overwritten by the implementation logic pointed to by this proxy. In such cases, the contract may end up in an
     * undesirable state where the admin slot is different from the actual admin. Relying on the value of the admin slot
     * is generally fine if the implementation is trusted.
     *
     * WARNING: It is not recommended to extend this contract to add additional external functions. If you do so, the
     * compiler will not check that there are no selector conflicts, due to the note above. A selector clash between any new
     * function and the functions declared in {ITransparentUpgradeableProxy} will be resolved in favor of the new one. This
     * could render the `upgradeToAndCall` function inaccessible, preventing upgradeability and compromising transparency.
     */
    contract TransparentUpgradeableProxy is ERC1967Proxy {
        // An immutable address for the admin to avoid unnecessary SLOADs before each call
        // at the expense of removing the ability to change the admin once it's set.
        // This is acceptable if the admin is always a ProxyAdmin instance or similar contract
        // with its own ability to transfer the permissions to another account.
        address private immutable _admin;
        /**
         * @dev The proxy caller is the current admin, and can't fallback to the proxy target.
         */
        error ProxyDeniedAdminAccess();
        /**
         * @dev Initializes an upgradeable proxy managed by an instance of a {ProxyAdmin} with an `initialOwner`,
         * backed by the implementation at `_logic`, and optionally initialized with `_data` as explained in
         * {ERC1967Proxy-constructor}.
         */
        constructor(address _logic, address initialOwner, bytes memory _data) payable ERC1967Proxy(_logic, _data) {
            _admin = address(new ProxyAdmin(initialOwner));
            // Set the storage value and emit an event for ERC-1967 compatibility
            ERC1967Utils.changeAdmin(_proxyAdmin());
        }
        /**
         * @dev Returns the admin of this proxy.
         */
        function _proxyAdmin() internal view virtual returns (address) {
            return _admin;
        }
        /**
         * @dev If caller is the admin process the call internally, otherwise transparently fallback to the proxy behavior.
         */
        function _fallback() internal virtual override {
            if (msg.sender == _proxyAdmin()) {
                if (msg.sig != ITransparentUpgradeableProxy.upgradeToAndCall.selector) {
                    revert ProxyDeniedAdminAccess();
                } else {
                    _dispatchUpgradeToAndCall();
                }
            } else {
                super._fallback();
            }
        }
        /**
         * @dev Upgrade the implementation of the proxy. See {ERC1967Utils-upgradeToAndCall}.
         *
         * Requirements:
         *
         * - If `data` is empty, `msg.value` must be zero.
         */
        function _dispatchUpgradeToAndCall() private {
            (address newImplementation, bytes memory data) = abi.decode(msg.data[4:], (address, bytes));
            ERC1967Utils.upgradeToAndCall(newImplementation, data);
        }
    }
    // SPDX-License-Identifier: MIT
    // OpenZeppelin Contracts (last updated v5.2.0) (proxy/ERC1967/ERC1967Utils.sol)
    pragma solidity ^0.8.22;
    import {IBeacon} from "../beacon/IBeacon.sol";
    import {IERC1967} from "../../interfaces/IERC1967.sol";
    import {Address} from "../../utils/Address.sol";
    import {StorageSlot} from "../../utils/StorageSlot.sol";
    /**
     * @dev This library provides getters and event emitting update functions for
     * https://eips.ethereum.org/EIPS/eip-1967[ERC-1967] slots.
     */
    library ERC1967Utils {
        /**
         * @dev Storage slot with the address of the current implementation.
         * This is the keccak-256 hash of "eip1967.proxy.implementation" subtracted by 1.
         */
        // solhint-disable-next-line private-vars-leading-underscore
        bytes32 internal constant IMPLEMENTATION_SLOT = 0x360894a13ba1a3210667c828492db98dca3e2076cc3735a920a3ca505d382bbc;
        /**
         * @dev The `implementation` of the proxy is invalid.
         */
        error ERC1967InvalidImplementation(address implementation);
        /**
         * @dev The `admin` of the proxy is invalid.
         */
        error ERC1967InvalidAdmin(address admin);
        /**
         * @dev The `beacon` of the proxy is invalid.
         */
        error ERC1967InvalidBeacon(address beacon);
        /**
         * @dev An upgrade function sees `msg.value > 0` that may be lost.
         */
        error ERC1967NonPayable();
        /**
         * @dev Returns the current implementation address.
         */
        function getImplementation() internal view returns (address) {
            return StorageSlot.getAddressSlot(IMPLEMENTATION_SLOT).value;
        }
        /**
         * @dev Stores a new address in the ERC-1967 implementation slot.
         */
        function _setImplementation(address newImplementation) private {
            if (newImplementation.code.length == 0) {
                revert ERC1967InvalidImplementation(newImplementation);
            }
            StorageSlot.getAddressSlot(IMPLEMENTATION_SLOT).value = newImplementation;
        }
        /**
         * @dev Performs implementation upgrade with additional setup call if data is nonempty.
         * This function is payable only if the setup call is performed, otherwise `msg.value` is rejected
         * to avoid stuck value in the contract.
         *
         * Emits an {IERC1967-Upgraded} event.
         */
        function upgradeToAndCall(address newImplementation, bytes memory data) internal {
            _setImplementation(newImplementation);
            emit IERC1967.Upgraded(newImplementation);
            if (data.length > 0) {
                Address.functionDelegateCall(newImplementation, data);
            } else {
                _checkNonPayable();
            }
        }
        /**
         * @dev Storage slot with the admin of the contract.
         * This is the keccak-256 hash of "eip1967.proxy.admin" subtracted by 1.
         */
        // solhint-disable-next-line private-vars-leading-underscore
        bytes32 internal constant ADMIN_SLOT = 0xb53127684a568b3173ae13b9f8a6016e243e63b6e8ee1178d6a717850b5d6103;
        /**
         * @dev Returns the current admin.
         *
         * TIP: To get this value clients can read directly from the storage slot shown below (specified by ERC-1967) using
         * the https://eth.wiki/json-rpc/API#eth_getstorageat[`eth_getStorageAt`] RPC call.
         * `0xb53127684a568b3173ae13b9f8a6016e243e63b6e8ee1178d6a717850b5d6103`
         */
        function getAdmin() internal view returns (address) {
            return StorageSlot.getAddressSlot(ADMIN_SLOT).value;
        }
        /**
         * @dev Stores a new address in the ERC-1967 admin slot.
         */
        function _setAdmin(address newAdmin) private {
            if (newAdmin == address(0)) {
                revert ERC1967InvalidAdmin(address(0));
            }
            StorageSlot.getAddressSlot(ADMIN_SLOT).value = newAdmin;
        }
        /**
         * @dev Changes the admin of the proxy.
         *
         * Emits an {IERC1967-AdminChanged} event.
         */
        function changeAdmin(address newAdmin) internal {
            emit IERC1967.AdminChanged(getAdmin(), newAdmin);
            _setAdmin(newAdmin);
        }
        /**
         * @dev The storage slot of the UpgradeableBeacon contract which defines the implementation for this proxy.
         * This is the keccak-256 hash of "eip1967.proxy.beacon" subtracted by 1.
         */
        // solhint-disable-next-line private-vars-leading-underscore
        bytes32 internal constant BEACON_SLOT = 0xa3f0ad74e5423aebfd80d3ef4346578335a9a72aeaee59ff6cb3582b35133d50;
        /**
         * @dev Returns the current beacon.
         */
        function getBeacon() internal view returns (address) {
            return StorageSlot.getAddressSlot(BEACON_SLOT).value;
        }
        /**
         * @dev Stores a new beacon in the ERC-1967 beacon slot.
         */
        function _setBeacon(address newBeacon) private {
            if (newBeacon.code.length == 0) {
                revert ERC1967InvalidBeacon(newBeacon);
            }
            StorageSlot.getAddressSlot(BEACON_SLOT).value = newBeacon;
            address beaconImplementation = IBeacon(newBeacon).implementation();
            if (beaconImplementation.code.length == 0) {
                revert ERC1967InvalidImplementation(beaconImplementation);
            }
        }
        /**
         * @dev Change the beacon and trigger a setup call if data is nonempty.
         * This function is payable only if the setup call is performed, otherwise `msg.value` is rejected
         * to avoid stuck value in the contract.
         *
         * Emits an {IERC1967-BeaconUpgraded} event.
         *
         * CAUTION: Invoking this function has no effect on an instance of {BeaconProxy} since v5, since
         * it uses an immutable beacon without looking at the value of the ERC-1967 beacon slot for
         * efficiency.
         */
        function upgradeBeaconToAndCall(address newBeacon, bytes memory data) internal {
            _setBeacon(newBeacon);
            emit IERC1967.BeaconUpgraded(newBeacon);
            if (data.length > 0) {
                Address.functionDelegateCall(IBeacon(newBeacon).implementation(), data);
            } else {
                _checkNonPayable();
            }
        }
        /**
         * @dev Reverts if `msg.value` is not zero. It can be used to avoid `msg.value` stuck in the contract
         * if an upgrade doesn't perform an initialization call.
         */
        function _checkNonPayable() private {
            if (msg.value > 0) {
                revert ERC1967NonPayable();
            }
        }
    }
    // SPDX-License-Identifier: MIT
    // OpenZeppelin Contracts (last updated v5.2.0) (proxy/ERC1967/ERC1967Proxy.sol)
    pragma solidity ^0.8.22;
    import {Proxy} from "../Proxy.sol";
    import {ERC1967Utils} from "./ERC1967Utils.sol";
    /**
     * @dev This contract implements an upgradeable proxy. It is upgradeable because calls are delegated to an
     * implementation address that can be changed. This address is stored in storage in the location specified by
     * https://eips.ethereum.org/EIPS/eip-1967[ERC-1967], so that it doesn't conflict with the storage layout of the
     * implementation behind the proxy.
     */
    contract ERC1967Proxy is Proxy {
        /**
         * @dev Initializes the upgradeable proxy with an initial implementation specified by `implementation`.
         *
         * If `_data` is nonempty, it's used as data in a delegate call to `implementation`. This will typically be an
         * encoded function call, and allows initializing the storage of the proxy like a Solidity constructor.
         *
         * Requirements:
         *
         * - If `data` is empty, `msg.value` must be zero.
         */
        constructor(address implementation, bytes memory _data) payable {
            ERC1967Utils.upgradeToAndCall(implementation, _data);
        }
        /**
         * @dev Returns the current implementation address.
         *
         * TIP: To get this value clients can read directly from the storage slot shown below (specified by ERC-1967) using
         * the https://eth.wiki/json-rpc/API#eth_getstorageat[`eth_getStorageAt`] RPC call.
         * `0x360894a13ba1a3210667c828492db98dca3e2076cc3735a920a3ca505d382bbc`
         */
        function _implementation() internal view virtual override returns (address) {
            return ERC1967Utils.getImplementation();
        }
    }
    // SPDX-License-Identifier: MIT
    // OpenZeppelin Contracts (last updated v5.0.0) (interfaces/IERC1967.sol)
    pragma solidity ^0.8.20;
    /**
     * @dev ERC-1967: Proxy Storage Slots. This interface contains the events defined in the ERC.
     */
    interface IERC1967 {
        /**
         * @dev Emitted when the implementation is upgraded.
         */
        event Upgraded(address indexed implementation);
        /**
         * @dev Emitted when the admin account has changed.
         */
        event AdminChanged(address previousAdmin, address newAdmin);
        /**
         * @dev Emitted when the beacon is changed.
         */
        event BeaconUpgraded(address indexed beacon);
    }
    // SPDX-License-Identifier: MIT
    // OpenZeppelin Contracts (last updated v5.2.0) (proxy/transparent/ProxyAdmin.sol)
    pragma solidity ^0.8.22;
    import {ITransparentUpgradeableProxy} from "./TransparentUpgradeableProxy.sol";
    import {Ownable} from "../../access/Ownable.sol";
    /**
     * @dev This is an auxiliary contract meant to be assigned as the admin of a {TransparentUpgradeableProxy}. For an
     * explanation of why you would want to use this see the documentation for {TransparentUpgradeableProxy}.
     */
    contract ProxyAdmin is Ownable {
        /**
         * @dev The version of the upgrade interface of the contract. If this getter is missing, both `upgrade(address,address)`
         * and `upgradeAndCall(address,address,bytes)` are present, and `upgrade` must be used if no function should be called,
         * while `upgradeAndCall` will invoke the `receive` function if the third argument is the empty byte string.
         * If the getter returns `"5.0.0"`, only `upgradeAndCall(address,address,bytes)` is present, and the third argument must
         * be the empty byte string if no function should be called, making it impossible to invoke the `receive` function
         * during an upgrade.
         */
        string public constant UPGRADE_INTERFACE_VERSION = "5.0.0";
        /**
         * @dev Sets the initial owner who can perform upgrades.
         */
        constructor(address initialOwner) Ownable(initialOwner) {}
        /**
         * @dev Upgrades `proxy` to `implementation` and calls a function on the new implementation.
         * See {TransparentUpgradeableProxy-_dispatchUpgradeToAndCall}.
         *
         * Requirements:
         *
         * - This contract must be the admin of `proxy`.
         * - If `data` is empty, `msg.value` must be zero.
         */
        function upgradeAndCall(
            ITransparentUpgradeableProxy proxy,
            address implementation,
            bytes memory data
        ) public payable virtual onlyOwner {
            proxy.upgradeToAndCall{value: msg.value}(implementation, data);
        }
    }
    // SPDX-License-Identifier: MIT
    // OpenZeppelin Contracts (last updated v5.0.0) (proxy/beacon/IBeacon.sol)
    pragma solidity ^0.8.20;
    /**
     * @dev This is the interface that {BeaconProxy} expects of its beacon.
     */
    interface IBeacon {
        /**
         * @dev Must return an address that can be used as a delegate call target.
         *
         * {UpgradeableBeacon} will check that this address is a contract.
         */
        function implementation() external view returns (address);
    }
    // SPDX-License-Identifier: MIT
    // OpenZeppelin Contracts (last updated v5.2.0) (utils/Address.sol)
    pragma solidity ^0.8.20;
    import {Errors} from "./Errors.sol";
    /**
     * @dev Collection of functions related to the address type
     */
    library Address {
        /**
         * @dev There's no code at `target` (it is not a contract).
         */
        error AddressEmptyCode(address target);
        /**
         * @dev Replacement for Solidity's `transfer`: sends `amount` wei to
         * `recipient`, forwarding all available gas and reverting on errors.
         *
         * https://eips.ethereum.org/EIPS/eip-1884[EIP1884] increases the gas cost
         * of certain opcodes, possibly making contracts go over the 2300 gas limit
         * imposed by `transfer`, making them unable to receive funds via
         * `transfer`. {sendValue} removes this limitation.
         *
         * https://consensys.net/diligence/blog/2019/09/stop-using-soliditys-transfer-now/[Learn more].
         *
         * IMPORTANT: because control is transferred to `recipient`, care must be
         * taken to not create reentrancy vulnerabilities. Consider using
         * {ReentrancyGuard} or the
         * https://solidity.readthedocs.io/en/v0.8.20/security-considerations.html#use-the-checks-effects-interactions-pattern[checks-effects-interactions pattern].
         */
        function sendValue(address payable recipient, uint256 amount) internal {
            if (address(this).balance < amount) {
                revert Errors.InsufficientBalance(address(this).balance, amount);
            }
            (bool success, bytes memory returndata) = recipient.call{value: amount}("");
            if (!success) {
                _revert(returndata);
            }
        }
        /**
         * @dev Performs a Solidity function call using a low level `call`. A
         * plain `call` is an unsafe replacement for a function call: use this
         * function instead.
         *
         * If `target` reverts with a revert reason or custom error, it is bubbled
         * up by this function (like regular Solidity function calls). However, if
         * the call reverted with no returned reason, this function reverts with a
         * {Errors.FailedCall} error.
         *
         * Returns the raw returned data. To convert to the expected return value,
         * use https://solidity.readthedocs.io/en/latest/units-and-global-variables.html?highlight=abi.decode#abi-encoding-and-decoding-functions[`abi.decode`].
         *
         * Requirements:
         *
         * - `target` must be a contract.
         * - calling `target` with `data` must not revert.
         */
        function functionCall(address target, bytes memory data) internal returns (bytes memory) {
            return functionCallWithValue(target, data, 0);
        }
        /**
         * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
         * but also transferring `value` wei to `target`.
         *
         * Requirements:
         *
         * - the calling contract must have an ETH balance of at least `value`.
         * - the called Solidity function must be `payable`.
         */
        function functionCallWithValue(address target, bytes memory data, uint256 value) internal returns (bytes memory) {
            if (address(this).balance < value) {
                revert Errors.InsufficientBalance(address(this).balance, value);
            }
            (bool success, bytes memory returndata) = target.call{value: value}(data);
            return verifyCallResultFromTarget(target, success, returndata);
        }
        /**
         * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
         * but performing a static call.
         */
        function functionStaticCall(address target, bytes memory data) internal view returns (bytes memory) {
            (bool success, bytes memory returndata) = target.staticcall(data);
            return verifyCallResultFromTarget(target, success, returndata);
        }
        /**
         * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
         * but performing a delegate call.
         */
        function functionDelegateCall(address target, bytes memory data) internal returns (bytes memory) {
            (bool success, bytes memory returndata) = target.delegatecall(data);
            return verifyCallResultFromTarget(target, success, returndata);
        }
        /**
         * @dev Tool to verify that a low level call to smart-contract was successful, and reverts if the target
         * was not a contract or bubbling up the revert reason (falling back to {Errors.FailedCall}) in case
         * of an unsuccessful call.
         */
        function verifyCallResultFromTarget(
            address target,
            bool success,
            bytes memory returndata
        ) internal view returns (bytes memory) {
            if (!success) {
                _revert(returndata);
            } else {
                // only check if target is a contract if the call was successful and the return data is empty
                // otherwise we already know that it was a contract
                if (returndata.length == 0 && target.code.length == 0) {
                    revert AddressEmptyCode(target);
                }
                return returndata;
            }
        }
        /**
         * @dev Tool to verify that a low level call was successful, and reverts if it wasn't, either by bubbling the
         * revert reason or with a default {Errors.FailedCall} error.
         */
        function verifyCallResult(bool success, bytes memory returndata) internal pure returns (bytes memory) {
            if (!success) {
                _revert(returndata);
            } else {
                return returndata;
            }
        }
        /**
         * @dev Reverts with returndata if present. Otherwise reverts with {Errors.FailedCall}.
         */
        function _revert(bytes memory returndata) private pure {
            // Look for revert reason and bubble it up if present
            if (returndata.length > 0) {
                // The easiest way to bubble the revert reason is using memory via assembly
                assembly ("memory-safe") {
                    let returndata_size := mload(returndata)
                    revert(add(32, returndata), returndata_size)
                }
            } else {
                revert Errors.FailedCall();
            }
        }
    }
    // SPDX-License-Identifier: MIT
    // OpenZeppelin Contracts (last updated v5.1.0) (utils/StorageSlot.sol)
    // This file was procedurally generated from scripts/generate/templates/StorageSlot.js.
    pragma solidity ^0.8.20;
    /**
     * @dev Library for reading and writing primitive types to specific storage slots.
     *
     * Storage slots are often used to avoid storage conflict when dealing with upgradeable contracts.
     * This library helps with reading and writing to such slots without the need for inline assembly.
     *
     * The functions in this library return Slot structs that contain a `value` member that can be used to read or write.
     *
     * Example usage to set ERC-1967 implementation slot:
     * ```solidity
     * contract ERC1967 {
     *     // Define the slot. Alternatively, use the SlotDerivation library to derive the slot.
     *     bytes32 internal constant _IMPLEMENTATION_SLOT = 0x360894a13ba1a3210667c828492db98dca3e2076cc3735a920a3ca505d382bbc;
     *
     *     function _getImplementation() internal view returns (address) {
     *         return StorageSlot.getAddressSlot(_IMPLEMENTATION_SLOT).value;
     *     }
     *
     *     function _setImplementation(address newImplementation) internal {
     *         require(newImplementation.code.length > 0);
     *         StorageSlot.getAddressSlot(_IMPLEMENTATION_SLOT).value = newImplementation;
     *     }
     * }
     * ```
     *
     * TIP: Consider using this library along with {SlotDerivation}.
     */
    library StorageSlot {
        struct AddressSlot {
            address value;
        }
        struct BooleanSlot {
            bool value;
        }
        struct Bytes32Slot {
            bytes32 value;
        }
        struct Uint256Slot {
            uint256 value;
        }
        struct Int256Slot {
            int256 value;
        }
        struct StringSlot {
            string value;
        }
        struct BytesSlot {
            bytes value;
        }
        /**
         * @dev Returns an `AddressSlot` with member `value` located at `slot`.
         */
        function getAddressSlot(bytes32 slot) internal pure returns (AddressSlot storage r) {
            assembly ("memory-safe") {
                r.slot := slot
            }
        }
        /**
         * @dev Returns a `BooleanSlot` with member `value` located at `slot`.
         */
        function getBooleanSlot(bytes32 slot) internal pure returns (BooleanSlot storage r) {
            assembly ("memory-safe") {
                r.slot := slot
            }
        }
        /**
         * @dev Returns a `Bytes32Slot` with member `value` located at `slot`.
         */
        function getBytes32Slot(bytes32 slot) internal pure returns (Bytes32Slot storage r) {
            assembly ("memory-safe") {
                r.slot := slot
            }
        }
        /**
         * @dev Returns a `Uint256Slot` with member `value` located at `slot`.
         */
        function getUint256Slot(bytes32 slot) internal pure returns (Uint256Slot storage r) {
            assembly ("memory-safe") {
                r.slot := slot
            }
        }
        /**
         * @dev Returns a `Int256Slot` with member `value` located at `slot`.
         */
        function getInt256Slot(bytes32 slot) internal pure returns (Int256Slot storage r) {
            assembly ("memory-safe") {
                r.slot := slot
            }
        }
        /**
         * @dev Returns a `StringSlot` with member `value` located at `slot`.
         */
        function getStringSlot(bytes32 slot) internal pure returns (StringSlot storage r) {
            assembly ("memory-safe") {
                r.slot := slot
            }
        }
        /**
         * @dev Returns an `StringSlot` representation of the string storage pointer `store`.
         */
        function getStringSlot(string storage store) internal pure returns (StringSlot storage r) {
            assembly ("memory-safe") {
                r.slot := store.slot
            }
        }
        /**
         * @dev Returns a `BytesSlot` with member `value` located at `slot`.
         */
        function getBytesSlot(bytes32 slot) internal pure returns (BytesSlot storage r) {
            assembly ("memory-safe") {
                r.slot := slot
            }
        }
        /**
         * @dev Returns an `BytesSlot` representation of the bytes storage pointer `store`.
         */
        function getBytesSlot(bytes storage store) internal pure returns (BytesSlot storage r) {
            assembly ("memory-safe") {
                r.slot := store.slot
            }
        }
    }
    // SPDX-License-Identifier: MIT
    // OpenZeppelin Contracts (last updated v5.0.0) (proxy/Proxy.sol)
    pragma solidity ^0.8.20;
    /**
     * @dev This abstract contract provides a fallback function that delegates all calls to another contract using the EVM
     * instruction `delegatecall`. We refer to the second contract as the _implementation_ behind the proxy, and it has to
     * be specified by overriding the virtual {_implementation} function.
     *
     * Additionally, delegation to the implementation can be triggered manually through the {_fallback} function, or to a
     * different contract through the {_delegate} function.
     *
     * The success and return data of the delegated call will be returned back to the caller of the proxy.
     */
    abstract contract Proxy {
        /**
         * @dev Delegates the current call to `implementation`.
         *
         * This function does not return to its internal call site, it will return directly to the external caller.
         */
        function _delegate(address implementation) internal virtual {
            assembly {
                // Copy msg.data. We take full control of memory in this inline assembly
                // block because it will not return to Solidity code. We overwrite the
                // Solidity scratch pad at memory position 0.
                calldatacopy(0, 0, calldatasize())
                // Call the implementation.
                // out and outsize are 0 because we don't know the size yet.
                let result := delegatecall(gas(), implementation, 0, calldatasize(), 0, 0)
                // Copy the returned data.
                returndatacopy(0, 0, returndatasize())
                switch result
                // delegatecall returns 0 on error.
                case 0 {
                    revert(0, returndatasize())
                }
                default {
                    return(0, returndatasize())
                }
            }
        }
        /**
         * @dev This is a virtual function that should be overridden so it returns the address to which the fallback
         * function and {_fallback} should delegate.
         */
        function _implementation() internal view virtual returns (address);
        /**
         * @dev Delegates the current call to the address returned by `_implementation()`.
         *
         * This function does not return to its internal call site, it will return directly to the external caller.
         */
        function _fallback() internal virtual {
            _delegate(_implementation());
        }
        /**
         * @dev Fallback function that delegates calls to the address returned by `_implementation()`. Will run if no other
         * function in the contract matches the call data.
         */
        fallback() external payable virtual {
            _fallback();
        }
    }
    // SPDX-License-Identifier: MIT
    // OpenZeppelin Contracts (last updated v5.0.0) (access/Ownable.sol)
    pragma solidity ^0.8.20;
    import {Context} from "../utils/Context.sol";
    /**
     * @dev Contract module which provides a basic access control mechanism, where
     * there is an account (an owner) that can be granted exclusive access to
     * specific functions.
     *
     * The initial owner is set to the address provided by the deployer. This can
     * later be changed with {transferOwnership}.
     *
     * This module is used through inheritance. It will make available the modifier
     * `onlyOwner`, which can be applied to your functions to restrict their use to
     * the owner.
     */
    abstract contract Ownable is Context {
        address private _owner;
        /**
         * @dev The caller account is not authorized to perform an operation.
         */
        error OwnableUnauthorizedAccount(address account);
        /**
         * @dev The owner is not a valid owner account. (eg. `address(0)`)
         */
        error OwnableInvalidOwner(address owner);
        event OwnershipTransferred(address indexed previousOwner, address indexed newOwner);
        /**
         * @dev Initializes the contract setting the address provided by the deployer as the initial owner.
         */
        constructor(address initialOwner) {
            if (initialOwner == address(0)) {
                revert OwnableInvalidOwner(address(0));
            }
            _transferOwnership(initialOwner);
        }
        /**
         * @dev Throws if called by any account other than the owner.
         */
        modifier onlyOwner() {
            _checkOwner();
            _;
        }
        /**
         * @dev Returns the address of the current owner.
         */
        function owner() public view virtual returns (address) {
            return _owner;
        }
        /**
         * @dev Throws if the sender is not the owner.
         */
        function _checkOwner() internal view virtual {
            if (owner() != _msgSender()) {
                revert OwnableUnauthorizedAccount(_msgSender());
            }
        }
        /**
         * @dev Leaves the contract without owner. It will not be possible to call
         * `onlyOwner` functions. Can only be called by the current owner.
         *
         * NOTE: Renouncing ownership will leave the contract without an owner,
         * thereby disabling any functionality that is only available to the owner.
         */
        function renounceOwnership() public virtual onlyOwner {
            _transferOwnership(address(0));
        }
        /**
         * @dev Transfers ownership of the contract to a new account (`newOwner`).
         * Can only be called by the current owner.
         */
        function transferOwnership(address newOwner) public virtual onlyOwner {
            if (newOwner == address(0)) {
                revert OwnableInvalidOwner(address(0));
            }
            _transferOwnership(newOwner);
        }
        /**
         * @dev Transfers ownership of the contract to a new account (`newOwner`).
         * Internal function without access restriction.
         */
        function _transferOwnership(address newOwner) internal virtual {
            address oldOwner = _owner;
            _owner = newOwner;
            emit OwnershipTransferred(oldOwner, newOwner);
        }
    }
    // SPDX-License-Identifier: MIT
    // OpenZeppelin Contracts (last updated v5.1.0) (utils/Errors.sol)
    pragma solidity ^0.8.20;
    /**
     * @dev Collection of common custom errors used in multiple contracts
     *
     * IMPORTANT: Backwards compatibility is not guaranteed in future versions of the library.
     * It is recommended to avoid relying on the error API for critical functionality.
     *
     * _Available since v5.1._
     */
    library Errors {
        /**
         * @dev The ETH balance of the account is not enough to perform the operation.
         */
        error InsufficientBalance(uint256 balance, uint256 needed);
        /**
         * @dev A call to an address target failed. The target may have reverted.
         */
        error FailedCall();
        /**
         * @dev The deployment failed.
         */
        error FailedDeployment();
        /**
         * @dev A necessary precompile is missing.
         */
        error MissingPrecompile(address);
    }
    // SPDX-License-Identifier: MIT
    // OpenZeppelin Contracts (last updated v5.0.1) (utils/Context.sol)
    pragma solidity ^0.8.20;
    /**
     * @dev Provides information about the current execution context, including the
     * sender of the transaction and its data. While these are generally available
     * via msg.sender and msg.data, they should not be accessed in such a direct
     * manner, since when dealing with meta-transactions the account sending and
     * paying for execution may not be the actual sender (as far as an application
     * is concerned).
     *
     * This contract is only required for intermediate, library-like contracts.
     */
    abstract contract Context {
        function _msgSender() internal view virtual returns (address) {
            return msg.sender;
        }
        function _msgData() internal view virtual returns (bytes calldata) {
            return msg.data;
        }
        function _contextSuffixLength() internal view virtual returns (uint256) {
            return 0;
        }
    }
    

    File 2 of 2: LATokenMintable
    // SPDX-License-Identifier: MIT
    pragma solidity 0.8.25;
    import {LATokenBase} from "./LATokenBase.sol";
    /// @title LATokenMintable
    /// @notice This is the eth mainnet version of the LAToken, that supports minting and inflation
    contract LATokenMintable is LATokenBase {
        /// @custom:storage-location erc7201:lagrange.storage.LATokenMintable
        struct MintableStorage {
            uint256 lastMintCheckpoint; // sum of tokens minted since deployment
        }
        // keccak256(abi.encode(uint256(keccak256("lagrange.storage.LATokenMintable")) - 1)) & ~bytes32(uint256(0xff))
        bytes32 private constant MINTABLE_STORAGE_SLOT =
            0x2219bb684b280dec630467478a4cd2056b205c5189535fe0d80f615f47799400;
        bytes32 private constant MINTER_ROLE = keccak256("MINTER_ROLE");
        uint256 public immutable ANNUAL_INFLATION_RATE_PPTT; // parts per ten-thousand
        uint256 public immutable INITIAL_SUPPLY;
        uint256 private immutable DEPLOYMENT_DATETIME;
        event Mint(address indexed to, uint256 amount);
        error ExceedsAllowedInflation();
        /// @notice Constructor for the LATokenMintable contract
        /// @param lzEndpoint The endpoint for the LayerZero protocol
        /// @param inflationRatePPTT The annual inflation rate in parts per ten-thousand
        /// @param initialTreasury The initial supply of the token, minted to the treasury
        /// @dev only the LATokenMintable needs to know the initial supply, so that it
        /// can enforce inflation properly
        constructor(
            address lzEndpoint,
            uint256 inflationRatePPTT,
            uint256 initialTreasury
        ) LATokenBase(lzEndpoint) {
            ANNUAL_INFLATION_RATE_PPTT = inflationRatePPTT;
            INITIAL_SUPPLY = initialTreasury;
            DEPLOYMENT_DATETIME = block.timestamp;
        }
        /// @notice Initialize the token
        /// @param treasury The address that will be granted the MINTER_ROLE
        /// @param initialMintHandler The address that will receive the initial mint
        /// @param peers The OFT peers that will be added to the token
        function initialize(
            address treasury,
            address initialMintHandler,
            Peer[] calldata peers
        ) external initializer {
            __LATokenBase_init(treasury, peers);
            _grantRole(MINTER_ROLE, treasury);
            _mint(initialMintHandler, INITIAL_SUPPLY);
        }
        /// @notice Returns the amount of tokens that can be minted
        /// @return mintable The amount of tokens that can be minted
        function availableToMint() public view returns (uint256) {
            MintableStorage storage $ = _getMintableStorage();
            uint256 timeElapsed = block.timestamp - DEPLOYMENT_DATETIME;
            // 4% per year linearized: (supply * rate * seconds_elapsed) / (year_in_seconds * 10000)
            return (
                (INITIAL_SUPPLY * ANNUAL_INFLATION_RATE_PPTT * timeElapsed)
                    / (365 days * 10000)
            ) - $.lastMintCheckpoint;
        }
        /// @notice Mints tokens to a specified address
        /// @param to The address to mint tokens to
        /// @param amount The amount of tokens to mint
        /// @dev Caller must have the MINTER_ROLE
        /// @dev The amount of tokens to mint cannot exceed the inflation rate
        function mint(address to, uint256 amount) external onlyRole(MINTER_ROLE) {
            if (amount > availableToMint()) revert ExceedsAllowedInflation();
            MintableStorage storage $ = _getMintableStorage();
            $.lastMintCheckpoint += amount;
            _mint(to, amount);
            emit Mint(to, amount);
        }
        /// @notice Gets the storage struct
        /// @return $ The storage struct
        function _getMintableStorage()
            private
            pure
            returns (MintableStorage storage $)
        {
            bytes32 position = MINTABLE_STORAGE_SLOT;
            assembly {
                $.slot := position
            }
        }
    }
    // SPDX-License-Identifier: MIT
    pragma solidity 0.8.25;
    import {AccessControlDefaultAdminRulesUpgradeable} from
        "@openzeppelin-contracts-upgradeable-5.2.0/access/extensions/AccessControlDefaultAdminRulesUpgradeable.sol";
    import {OFTUpgradable} from "./OFTUpgradable.sol";
    import {Initializable} from
        "@openzeppelin-contracts-upgradeable-5.2.0/proxy/utils/Initializable.sol";
    import {IERC165} from "@openzeppelin/contracts/interfaces/IERC165.sol";
    import {IERC20} from "@openzeppelin/contracts/token/ERC20/IERC20.sol";
    import {IERC20Permit} from
        "@openzeppelin/contracts/token/ERC20/extensions/IERC20Permit.sol";
    /// @title LATokenBase
    /// @dev Base contract for the LAToken and LATokenMintable
    abstract contract LATokenBase is Initializable, OFTUpgradable {
        /// @dev The peer address and endpoint ID for a peer contract
        struct Peer {
            uint32 endpointID;
            bytes32 peerAddress;
        }
        string private constant NAME = "Lagrange";
        string private constant SYMBOL = "LA";
        error NoTreasuryDeployed();
        error InvalidPeer(uint32 endpointID, bytes32 peerAddress);
        /// @notice Disable initializers on the logic contract
        /// @param lzEndpoint The endpoint for the LayerZero protocol
        constructor(address lzEndpoint) OFTUpgradable(lzEndpoint) {
            _disableInitializers();
        }
        /// @notice Initialize the token
        /// @param treasury The address that will be granted the DEFAULT_ADMIN_ROLE
        /// @param peers The OFT peers that will be added to the token
        function __LATokenBase_init(address treasury, Peer[] calldata peers)
            internal
        {
            if (treasury.code.length == 0) {
                revert NoTreasuryDeployed();
            }
            __ERC20_init(NAME, SYMBOL);
            __ERC20Permit_init(NAME);
            __AccessControlDefaultAdminRules_init(0, treasury);
            __OFT_init(treasury);
            for (uint256 i = 0; i < peers.length; i++) {
                if (peers[i].endpointID == 0 || peers[i].peerAddress == bytes32(0))
                {
                    revert InvalidPeer(peers[i].endpointID, peers[i].peerAddress);
                }
                setPeer(peers[i].endpointID, peers[i].peerAddress);
            }
        }
        /// @inheritdoc IERC165
        function supportsInterface(bytes4 interfaceId)
            public
            view
            override(AccessControlDefaultAdminRulesUpgradeable)
            returns (bool)
        {
            return type(IERC20).interfaceId == interfaceId
                || type(IERC20Permit).interfaceId == interfaceId
                || super.supportsInterface(interfaceId);
        }
    }
    // SPDX-License-Identifier: MIT
    // OpenZeppelin Contracts (last updated v5.0.0) (access/extensions/AccessControlDefaultAdminRules.sol)
    pragma solidity ^0.8.20;
    import {IAccessControlDefaultAdminRules} from "@openzeppelin/contracts/access/extensions/IAccessControlDefaultAdminRules.sol";
    import {AccessControlUpgradeable} from "../AccessControlUpgradeable.sol";
    import {IAccessControl} from "@openzeppelin/contracts/access/IAccessControl.sol";
    import {SafeCast} from "@openzeppelin/contracts/utils/math/SafeCast.sol";
    import {Math} from "@openzeppelin/contracts/utils/math/Math.sol";
    import {IERC5313} from "@openzeppelin/contracts/interfaces/IERC5313.sol";
    import {Initializable} from "../../proxy/utils/Initializable.sol";
    /**
     * @dev Extension of {AccessControl} that allows specifying special rules to manage
     * the `DEFAULT_ADMIN_ROLE` holder, which is a sensitive role with special permissions
     * over other roles that may potentially have privileged rights in the system.
     *
     * If a specific role doesn't have an admin role assigned, the holder of the
     * `DEFAULT_ADMIN_ROLE` will have the ability to grant it and revoke it.
     *
     * This contract implements the following risk mitigations on top of {AccessControl}:
     *
     * * Only one account holds the `DEFAULT_ADMIN_ROLE` since deployment until it's potentially renounced.
     * * Enforces a 2-step process to transfer the `DEFAULT_ADMIN_ROLE` to another account.
     * * Enforces a configurable delay between the two steps, with the ability to cancel before the transfer is accepted.
     * * The delay can be changed by scheduling, see {changeDefaultAdminDelay}.
     * * It is not possible to use another role to manage the `DEFAULT_ADMIN_ROLE`.
     *
     * Example usage:
     *
     * ```solidity
     * contract MyToken is AccessControlDefaultAdminRules {
     *   constructor() AccessControlDefaultAdminRules(
     *     3 days,
     *     msg.sender // Explicit initial `DEFAULT_ADMIN_ROLE` holder
     *    ) {}
     * }
     * ```
     */
    abstract contract AccessControlDefaultAdminRulesUpgradeable is Initializable, IAccessControlDefaultAdminRules, IERC5313, AccessControlUpgradeable {
        /// @custom:storage-location erc7201:openzeppelin.storage.AccessControlDefaultAdminRules
        struct AccessControlDefaultAdminRulesStorage {
            // pending admin pair read/written together frequently
            address _pendingDefaultAdmin;
            uint48 _pendingDefaultAdminSchedule; // 0 == unset
            uint48 _currentDelay;
            address _currentDefaultAdmin;
            // pending delay pair read/written together frequently
            uint48 _pendingDelay;
            uint48 _pendingDelaySchedule; // 0 == unset
        }
        // keccak256(abi.encode(uint256(keccak256("openzeppelin.storage.AccessControlDefaultAdminRules")) - 1)) & ~bytes32(uint256(0xff))
        bytes32 private constant AccessControlDefaultAdminRulesStorageLocation = 0xeef3dac4538c82c8ace4063ab0acd2d15cdb5883aa1dff7c2673abb3d8698400;
        function _getAccessControlDefaultAdminRulesStorage() private pure returns (AccessControlDefaultAdminRulesStorage storage $) {
            assembly {
                $.slot := AccessControlDefaultAdminRulesStorageLocation
            }
        }
        /**
         * @dev Sets the initial values for {defaultAdminDelay} and {defaultAdmin} address.
         */
        function __AccessControlDefaultAdminRules_init(uint48 initialDelay, address initialDefaultAdmin) internal onlyInitializing {
            __AccessControlDefaultAdminRules_init_unchained(initialDelay, initialDefaultAdmin);
        }
        function __AccessControlDefaultAdminRules_init_unchained(uint48 initialDelay, address initialDefaultAdmin) internal onlyInitializing {
            AccessControlDefaultAdminRulesStorage storage $ = _getAccessControlDefaultAdminRulesStorage();
            if (initialDefaultAdmin == address(0)) {
                revert AccessControlInvalidDefaultAdmin(address(0));
            }
            $._currentDelay = initialDelay;
            _grantRole(DEFAULT_ADMIN_ROLE, initialDefaultAdmin);
        }
        /**
         * @dev See {IERC165-supportsInterface}.
         */
        function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) {
            return interfaceId == type(IAccessControlDefaultAdminRules).interfaceId || super.supportsInterface(interfaceId);
        }
        /**
         * @dev See {IERC5313-owner}.
         */
        function owner() public view virtual returns (address) {
            return defaultAdmin();
        }
        ///
        /// Override AccessControl role management
        ///
        /**
         * @dev See {AccessControl-grantRole}. Reverts for `DEFAULT_ADMIN_ROLE`.
         */
        function grantRole(bytes32 role, address account) public virtual override(AccessControlUpgradeable, IAccessControl) {
            if (role == DEFAULT_ADMIN_ROLE) {
                revert AccessControlEnforcedDefaultAdminRules();
            }
            super.grantRole(role, account);
        }
        /**
         * @dev See {AccessControl-revokeRole}. Reverts for `DEFAULT_ADMIN_ROLE`.
         */
        function revokeRole(bytes32 role, address account) public virtual override(AccessControlUpgradeable, IAccessControl) {
            if (role == DEFAULT_ADMIN_ROLE) {
                revert AccessControlEnforcedDefaultAdminRules();
            }
            super.revokeRole(role, account);
        }
        /**
         * @dev See {AccessControl-renounceRole}.
         *
         * For the `DEFAULT_ADMIN_ROLE`, it only allows renouncing in two steps by first calling
         * {beginDefaultAdminTransfer} to the `address(0)`, so it's required that the {pendingDefaultAdmin} schedule
         * has also passed when calling this function.
         *
         * After its execution, it will not be possible to call `onlyRole(DEFAULT_ADMIN_ROLE)` functions.
         *
         * NOTE: Renouncing `DEFAULT_ADMIN_ROLE` will leave the contract without a {defaultAdmin},
         * thereby disabling any functionality that is only available for it, and the possibility of reassigning a
         * non-administrated role.
         */
        function renounceRole(bytes32 role, address account) public virtual override(AccessControlUpgradeable, IAccessControl) {
            AccessControlDefaultAdminRulesStorage storage $ = _getAccessControlDefaultAdminRulesStorage();
            if (role == DEFAULT_ADMIN_ROLE && account == defaultAdmin()) {
                (address newDefaultAdmin, uint48 schedule) = pendingDefaultAdmin();
                if (newDefaultAdmin != address(0) || !_isScheduleSet(schedule) || !_hasSchedulePassed(schedule)) {
                    revert AccessControlEnforcedDefaultAdminDelay(schedule);
                }
                delete $._pendingDefaultAdminSchedule;
            }
            super.renounceRole(role, account);
        }
        /**
         * @dev See {AccessControl-_grantRole}.
         *
         * For `DEFAULT_ADMIN_ROLE`, it only allows granting if there isn't already a {defaultAdmin} or if the
         * role has been previously renounced.
         *
         * NOTE: Exposing this function through another mechanism may make the `DEFAULT_ADMIN_ROLE`
         * assignable again. Make sure to guarantee this is the expected behavior in your implementation.
         */
        function _grantRole(bytes32 role, address account) internal virtual override returns (bool) {
            AccessControlDefaultAdminRulesStorage storage $ = _getAccessControlDefaultAdminRulesStorage();
            if (role == DEFAULT_ADMIN_ROLE) {
                if (defaultAdmin() != address(0)) {
                    revert AccessControlEnforcedDefaultAdminRules();
                }
                $._currentDefaultAdmin = account;
            }
            return super._grantRole(role, account);
        }
        /**
         * @dev See {AccessControl-_revokeRole}.
         */
        function _revokeRole(bytes32 role, address account) internal virtual override returns (bool) {
            AccessControlDefaultAdminRulesStorage storage $ = _getAccessControlDefaultAdminRulesStorage();
            if (role == DEFAULT_ADMIN_ROLE && account == defaultAdmin()) {
                delete $._currentDefaultAdmin;
            }
            return super._revokeRole(role, account);
        }
        /**
         * @dev See {AccessControl-_setRoleAdmin}. Reverts for `DEFAULT_ADMIN_ROLE`.
         */
        function _setRoleAdmin(bytes32 role, bytes32 adminRole) internal virtual override {
            if (role == DEFAULT_ADMIN_ROLE) {
                revert AccessControlEnforcedDefaultAdminRules();
            }
            super._setRoleAdmin(role, adminRole);
        }
        ///
        /// AccessControlDefaultAdminRules accessors
        ///
        /**
         * @inheritdoc IAccessControlDefaultAdminRules
         */
        function defaultAdmin() public view virtual returns (address) {
            AccessControlDefaultAdminRulesStorage storage $ = _getAccessControlDefaultAdminRulesStorage();
            return $._currentDefaultAdmin;
        }
        /**
         * @inheritdoc IAccessControlDefaultAdminRules
         */
        function pendingDefaultAdmin() public view virtual returns (address newAdmin, uint48 schedule) {
            AccessControlDefaultAdminRulesStorage storage $ = _getAccessControlDefaultAdminRulesStorage();
            return ($._pendingDefaultAdmin, $._pendingDefaultAdminSchedule);
        }
        /**
         * @inheritdoc IAccessControlDefaultAdminRules
         */
        function defaultAdminDelay() public view virtual returns (uint48) {
            AccessControlDefaultAdminRulesStorage storage $ = _getAccessControlDefaultAdminRulesStorage();
            uint48 schedule = $._pendingDelaySchedule;
            return (_isScheduleSet(schedule) && _hasSchedulePassed(schedule)) ? $._pendingDelay : $._currentDelay;
        }
        /**
         * @inheritdoc IAccessControlDefaultAdminRules
         */
        function pendingDefaultAdminDelay() public view virtual returns (uint48 newDelay, uint48 schedule) {
            AccessControlDefaultAdminRulesStorage storage $ = _getAccessControlDefaultAdminRulesStorage();
            schedule = $._pendingDelaySchedule;
            return (_isScheduleSet(schedule) && !_hasSchedulePassed(schedule)) ? ($._pendingDelay, schedule) : (0, 0);
        }
        /**
         * @inheritdoc IAccessControlDefaultAdminRules
         */
        function defaultAdminDelayIncreaseWait() public view virtual returns (uint48) {
            return 5 days;
        }
        ///
        /// AccessControlDefaultAdminRules public and internal setters for defaultAdmin/pendingDefaultAdmin
        ///
        /**
         * @inheritdoc IAccessControlDefaultAdminRules
         */
        function beginDefaultAdminTransfer(address newAdmin) public virtual onlyRole(DEFAULT_ADMIN_ROLE) {
            _beginDefaultAdminTransfer(newAdmin);
        }
        /**
         * @dev See {beginDefaultAdminTransfer}.
         *
         * Internal function without access restriction.
         */
        function _beginDefaultAdminTransfer(address newAdmin) internal virtual {
            uint48 newSchedule = SafeCast.toUint48(block.timestamp) + defaultAdminDelay();
            _setPendingDefaultAdmin(newAdmin, newSchedule);
            emit DefaultAdminTransferScheduled(newAdmin, newSchedule);
        }
        /**
         * @inheritdoc IAccessControlDefaultAdminRules
         */
        function cancelDefaultAdminTransfer() public virtual onlyRole(DEFAULT_ADMIN_ROLE) {
            _cancelDefaultAdminTransfer();
        }
        /**
         * @dev See {cancelDefaultAdminTransfer}.
         *
         * Internal function without access restriction.
         */
        function _cancelDefaultAdminTransfer() internal virtual {
            _setPendingDefaultAdmin(address(0), 0);
        }
        /**
         * @inheritdoc IAccessControlDefaultAdminRules
         */
        function acceptDefaultAdminTransfer() public virtual {
            (address newDefaultAdmin, ) = pendingDefaultAdmin();
            if (_msgSender() != newDefaultAdmin) {
                // Enforce newDefaultAdmin explicit acceptance.
                revert AccessControlInvalidDefaultAdmin(_msgSender());
            }
            _acceptDefaultAdminTransfer();
        }
        /**
         * @dev See {acceptDefaultAdminTransfer}.
         *
         * Internal function without access restriction.
         */
        function _acceptDefaultAdminTransfer() internal virtual {
            AccessControlDefaultAdminRulesStorage storage $ = _getAccessControlDefaultAdminRulesStorage();
            (address newAdmin, uint48 schedule) = pendingDefaultAdmin();
            if (!_isScheduleSet(schedule) || !_hasSchedulePassed(schedule)) {
                revert AccessControlEnforcedDefaultAdminDelay(schedule);
            }
            _revokeRole(DEFAULT_ADMIN_ROLE, defaultAdmin());
            _grantRole(DEFAULT_ADMIN_ROLE, newAdmin);
            delete $._pendingDefaultAdmin;
            delete $._pendingDefaultAdminSchedule;
        }
        ///
        /// AccessControlDefaultAdminRules public and internal setters for defaultAdminDelay/pendingDefaultAdminDelay
        ///
        /**
         * @inheritdoc IAccessControlDefaultAdminRules
         */
        function changeDefaultAdminDelay(uint48 newDelay) public virtual onlyRole(DEFAULT_ADMIN_ROLE) {
            _changeDefaultAdminDelay(newDelay);
        }
        /**
         * @dev See {changeDefaultAdminDelay}.
         *
         * Internal function without access restriction.
         */
        function _changeDefaultAdminDelay(uint48 newDelay) internal virtual {
            uint48 newSchedule = SafeCast.toUint48(block.timestamp) + _delayChangeWait(newDelay);
            _setPendingDelay(newDelay, newSchedule);
            emit DefaultAdminDelayChangeScheduled(newDelay, newSchedule);
        }
        /**
         * @inheritdoc IAccessControlDefaultAdminRules
         */
        function rollbackDefaultAdminDelay() public virtual onlyRole(DEFAULT_ADMIN_ROLE) {
            _rollbackDefaultAdminDelay();
        }
        /**
         * @dev See {rollbackDefaultAdminDelay}.
         *
         * Internal function without access restriction.
         */
        function _rollbackDefaultAdminDelay() internal virtual {
            _setPendingDelay(0, 0);
        }
        /**
         * @dev Returns the amount of seconds to wait after the `newDelay` will
         * become the new {defaultAdminDelay}.
         *
         * The value returned guarantees that if the delay is reduced, it will go into effect
         * after a wait that honors the previously set delay.
         *
         * See {defaultAdminDelayIncreaseWait}.
         */
        function _delayChangeWait(uint48 newDelay) internal view virtual returns (uint48) {
            uint48 currentDelay = defaultAdminDelay();
            // When increasing the delay, we schedule the delay change to occur after a period of "new delay" has passed, up
            // to a maximum given by defaultAdminDelayIncreaseWait, by default 5 days. For example, if increasing from 1 day
            // to 3 days, the new delay will come into effect after 3 days. If increasing from 1 day to 10 days, the new
            // delay will come into effect after 5 days. The 5 day wait period is intended to be able to fix an error like
            // using milliseconds instead of seconds.
            //
            // When decreasing the delay, we wait the difference between "current delay" and "new delay". This guarantees
            // that an admin transfer cannot be made faster than "current delay" at the time the delay change is scheduled.
            // For example, if decreasing from 10 days to 3 days, the new delay will come into effect after 7 days.
            return
                newDelay > currentDelay
                    ? uint48(Math.min(newDelay, defaultAdminDelayIncreaseWait())) // no need to safecast, both inputs are uint48
                    : currentDelay - newDelay;
        }
        ///
        /// Private setters
        ///
        /**
         * @dev Setter of the tuple for pending admin and its schedule.
         *
         * May emit a DefaultAdminTransferCanceled event.
         */
        function _setPendingDefaultAdmin(address newAdmin, uint48 newSchedule) private {
            AccessControlDefaultAdminRulesStorage storage $ = _getAccessControlDefaultAdminRulesStorage();
            (, uint48 oldSchedule) = pendingDefaultAdmin();
            $._pendingDefaultAdmin = newAdmin;
            $._pendingDefaultAdminSchedule = newSchedule;
            // An `oldSchedule` from `pendingDefaultAdmin()` is only set if it hasn't been accepted.
            if (_isScheduleSet(oldSchedule)) {
                // Emit for implicit cancellations when another default admin was scheduled.
                emit DefaultAdminTransferCanceled();
            }
        }
        /**
         * @dev Setter of the tuple for pending delay and its schedule.
         *
         * May emit a DefaultAdminDelayChangeCanceled event.
         */
        function _setPendingDelay(uint48 newDelay, uint48 newSchedule) private {
            AccessControlDefaultAdminRulesStorage storage $ = _getAccessControlDefaultAdminRulesStorage();
            uint48 oldSchedule = $._pendingDelaySchedule;
            if (_isScheduleSet(oldSchedule)) {
                if (_hasSchedulePassed(oldSchedule)) {
                    // Materialize a virtual delay
                    $._currentDelay = $._pendingDelay;
                } else {
                    // Emit for implicit cancellations when another delay was scheduled.
                    emit DefaultAdminDelayChangeCanceled();
                }
            }
            $._pendingDelay = newDelay;
            $._pendingDelaySchedule = newSchedule;
        }
        ///
        /// Private helpers
        ///
        /**
         * @dev Defines if an `schedule` is considered set. For consistency purposes.
         */
        function _isScheduleSet(uint48 schedule) private pure returns (bool) {
            return schedule != 0;
        }
        /**
         * @dev Defines if an `schedule` is considered passed. For consistency purposes.
         */
        function _hasSchedulePassed(uint48 schedule) private view returns (bool) {
            return schedule < block.timestamp;
        }
    }
    // SPDX-License-Identifier: MIT
    pragma solidity 0.8.25;
    import {AccessControlDefaultAdminRulesUpgradeable} from
        "@openzeppelin-contracts-upgradeable-5.2.0/access/extensions/AccessControlDefaultAdminRulesUpgradeable.sol";
    import {ERC20PermitUpgradeable} from
        "@openzeppelin-contracts-upgradeable-5.2.0/token/ERC20/extensions/ERC20PermitUpgradeable.sol";
    import {OFTCustomUpgradeable} from
        "@layerzerolabs/oft-evm-upgradeable/contracts/oft/OFTCustomUpgradeable.sol";
    import {OnlyLZAdmin} from
        "@layerzerolabs/oapp-evm-upgradeable/contracts/OnlyLZAdmin.sol";
    /// @title OFTUpgradable
    /// @dev Implementation of the LZ OFT standard with airdrop and minting functionality
    abstract contract OFTUpgradable is
        AccessControlDefaultAdminRulesUpgradeable,
        ERC20PermitUpgradeable,
        OFTCustomUpgradeable
    {
        /// @notice Constructor for the OFTUpgradable contract
        /// @param lzEndpoint The endpoint for the LayerZero protocol
        constructor(address lzEndpoint)
            OFTCustomUpgradeable(decimals(), lzEndpoint)
        {}
        /// @inheritdoc OnlyLZAdmin
        /// @dev Allow LZ admin actions during initialization
        modifier onlyLZAdmin() override {
            if (!_isInitializing()) {
                _checkRole(DEFAULT_ADMIN_ROLE);
            }
            _;
        }
        /// @inheritdoc OFTCustomUpgradeable
        function _oftBurn(address _from, uint256 _amountLD)
            internal
            virtual
            override
        {
            _burn(_from, _amountLD);
        }
        /// @inheritdoc OFTCustomUpgradeable
        function _oftMint(address _to, uint256 _amountLD)
            internal
            virtual
            override
        {
            _mint(_to, _amountLD);
        }
    }
    // SPDX-License-Identifier: MIT
    // OpenZeppelin Contracts (last updated v5.0.0) (proxy/utils/Initializable.sol)
    pragma solidity ^0.8.20;
    /**
     * @dev This is a base contract to aid in writing upgradeable contracts, or any kind of contract that will be deployed
     * behind a proxy. Since proxied contracts do not make use of a constructor, it's common to move constructor logic to an
     * external initializer function, usually called `initialize`. It then becomes necessary to protect this initializer
     * function so it can only be called once. The {initializer} modifier provided by this contract will have this effect.
     *
     * The initialization functions use a version number. Once a version number is used, it is consumed and cannot be
     * reused. This mechanism prevents re-execution of each "step" but allows the creation of new initialization steps in
     * case an upgrade adds a module that needs to be initialized.
     *
     * For example:
     *
     * [.hljs-theme-light.nopadding]
     * ```solidity
     * contract MyToken is ERC20Upgradeable {
     *     function initialize() initializer public {
     *         __ERC20_init("MyToken", "MTK");
     *     }
     * }
     *
     * contract MyTokenV2 is MyToken, ERC20PermitUpgradeable {
     *     function initializeV2() reinitializer(2) public {
     *         __ERC20Permit_init("MyToken");
     *     }
     * }
     * ```
     *
     * TIP: To avoid leaving the proxy in an uninitialized state, the initializer function should be called as early as
     * possible by providing the encoded function call as the `_data` argument to {ERC1967Proxy-constructor}.
     *
     * CAUTION: When used with inheritance, manual care must be taken to not invoke a parent initializer twice, or to ensure
     * that all initializers are idempotent. This is not verified automatically as constructors are by Solidity.
     *
     * [CAUTION]
     * ====
     * Avoid leaving a contract uninitialized.
     *
     * An uninitialized contract can be taken over by an attacker. This applies to both a proxy and its implementation
     * contract, which may impact the proxy. To prevent the implementation contract from being used, you should invoke
     * the {_disableInitializers} function in the constructor to automatically lock it when it is deployed:
     *
     * [.hljs-theme-light.nopadding]
     * ```
     * /// @custom:oz-upgrades-unsafe-allow constructor
     * constructor() {
     *     _disableInitializers();
     * }
     * ```
     * ====
     */
    abstract contract Initializable {
        /**
         * @dev Storage of the initializable contract.
         *
         * It's implemented on a custom ERC-7201 namespace to reduce the risk of storage collisions
         * when using with upgradeable contracts.
         *
         * @custom:storage-location erc7201:openzeppelin.storage.Initializable
         */
        struct InitializableStorage {
            /**
             * @dev Indicates that the contract has been initialized.
             */
            uint64 _initialized;
            /**
             * @dev Indicates that the contract is in the process of being initialized.
             */
            bool _initializing;
        }
        // keccak256(abi.encode(uint256(keccak256("openzeppelin.storage.Initializable")) - 1)) & ~bytes32(uint256(0xff))
        bytes32 private constant INITIALIZABLE_STORAGE = 0xf0c57e16840df040f15088dc2f81fe391c3923bec73e23a9662efc9c229c6a00;
        /**
         * @dev The contract is already initialized.
         */
        error InvalidInitialization();
        /**
         * @dev The contract is not initializing.
         */
        error NotInitializing();
        /**
         * @dev Triggered when the contract has been initialized or reinitialized.
         */
        event Initialized(uint64 version);
        /**
         * @dev A modifier that defines a protected initializer function that can be invoked at most once. In its scope,
         * `onlyInitializing` functions can be used to initialize parent contracts.
         *
         * Similar to `reinitializer(1)`, except that in the context of a constructor an `initializer` may be invoked any
         * number of times. This behavior in the constructor can be useful during testing and is not expected to be used in
         * production.
         *
         * Emits an {Initialized} event.
         */
        modifier initializer() {
            // solhint-disable-next-line var-name-mixedcase
            InitializableStorage storage $ = _getInitializableStorage();
            // Cache values to avoid duplicated sloads
            bool isTopLevelCall = !$._initializing;
            uint64 initialized = $._initialized;
            // Allowed calls:
            // - initialSetup: the contract is not in the initializing state and no previous version was
            //                 initialized
            // - construction: the contract is initialized at version 1 (no reininitialization) and the
            //                 current contract is just being deployed
            bool initialSetup = initialized == 0 && isTopLevelCall;
            bool construction = initialized == 1 && address(this).code.length == 0;
            if (!initialSetup && !construction) {
                revert InvalidInitialization();
            }
            $._initialized = 1;
            if (isTopLevelCall) {
                $._initializing = true;
            }
            _;
            if (isTopLevelCall) {
                $._initializing = false;
                emit Initialized(1);
            }
        }
        /**
         * @dev A modifier that defines a protected reinitializer function that can be invoked at most once, and only if the
         * contract hasn't been initialized to a greater version before. In its scope, `onlyInitializing` functions can be
         * used to initialize parent contracts.
         *
         * A reinitializer may be used after the original initialization step. This is essential to configure modules that
         * are added through upgrades and that require initialization.
         *
         * When `version` is 1, this modifier is similar to `initializer`, except that functions marked with `reinitializer`
         * cannot be nested. If one is invoked in the context of another, execution will revert.
         *
         * Note that versions can jump in increments greater than 1; this implies that if multiple reinitializers coexist in
         * a contract, executing them in the right order is up to the developer or operator.
         *
         * WARNING: Setting the version to 2**64 - 1 will prevent any future reinitialization.
         *
         * Emits an {Initialized} event.
         */
        modifier reinitializer(uint64 version) {
            // solhint-disable-next-line var-name-mixedcase
            InitializableStorage storage $ = _getInitializableStorage();
            if ($._initializing || $._initialized >= version) {
                revert InvalidInitialization();
            }
            $._initialized = version;
            $._initializing = true;
            _;
            $._initializing = false;
            emit Initialized(version);
        }
        /**
         * @dev Modifier to protect an initialization function so that it can only be invoked by functions with the
         * {initializer} and {reinitializer} modifiers, directly or indirectly.
         */
        modifier onlyInitializing() {
            _checkInitializing();
            _;
        }
        /**
         * @dev Reverts if the contract is not in an initializing state. See {onlyInitializing}.
         */
        function _checkInitializing() internal view virtual {
            if (!_isInitializing()) {
                revert NotInitializing();
            }
        }
        /**
         * @dev Locks the contract, preventing any future reinitialization. This cannot be part of an initializer call.
         * Calling this in the constructor of a contract will prevent that contract from being initialized or reinitialized
         * to any version. It is recommended to use this to lock implementation contracts that are designed to be called
         * through proxies.
         *
         * Emits an {Initialized} event the first time it is successfully executed.
         */
        function _disableInitializers() internal virtual {
            // solhint-disable-next-line var-name-mixedcase
            InitializableStorage storage $ = _getInitializableStorage();
            if ($._initializing) {
                revert InvalidInitialization();
            }
            if ($._initialized != type(uint64).max) {
                $._initialized = type(uint64).max;
                emit Initialized(type(uint64).max);
            }
        }
        /**
         * @dev Returns the highest version that has been initialized. See {reinitializer}.
         */
        function _getInitializedVersion() internal view returns (uint64) {
            return _getInitializableStorage()._initialized;
        }
        /**
         * @dev Returns `true` if the contract is currently initializing. See {onlyInitializing}.
         */
        function _isInitializing() internal view returns (bool) {
            return _getInitializableStorage()._initializing;
        }
        /**
         * @dev Returns a pointer to the storage namespace.
         */
        // solhint-disable-next-line var-name-mixedcase
        function _getInitializableStorage() private pure returns (InitializableStorage storage $) {
            assembly {
                $.slot := INITIALIZABLE_STORAGE
            }
        }
    }
    // SPDX-License-Identifier: MIT
    // OpenZeppelin Contracts (last updated v5.0.0) (interfaces/IERC165.sol)
    pragma solidity ^0.8.20;
    import {IERC165} from "../utils/introspection/IERC165.sol";
    // SPDX-License-Identifier: MIT
    // OpenZeppelin Contracts (last updated v5.1.0) (token/ERC20/IERC20.sol)
    pragma solidity ^0.8.20;
    /**
     * @dev Interface of the ERC-20 standard as defined in the ERC.
     */
    interface IERC20 {
        /**
         * @dev Emitted when `value` tokens are moved from one account (`from`) to
         * another (`to`).
         *
         * Note that `value` may be zero.
         */
        event Transfer(address indexed from, address indexed to, uint256 value);
        /**
         * @dev Emitted when the allowance of a `spender` for an `owner` is set by
         * a call to {approve}. `value` is the new allowance.
         */
        event Approval(address indexed owner, address indexed spender, uint256 value);
        /**
         * @dev Returns the value of tokens in existence.
         */
        function totalSupply() external view returns (uint256);
        /**
         * @dev Returns the value of tokens owned by `account`.
         */
        function balanceOf(address account) external view returns (uint256);
        /**
         * @dev Moves a `value` amount of tokens from the caller's account to `to`.
         *
         * Returns a boolean value indicating whether the operation succeeded.
         *
         * Emits a {Transfer} event.
         */
        function transfer(address to, uint256 value) external returns (bool);
        /**
         * @dev Returns the remaining number of tokens that `spender` will be
         * allowed to spend on behalf of `owner` through {transferFrom}. This is
         * zero by default.
         *
         * This value changes when {approve} or {transferFrom} are called.
         */
        function allowance(address owner, address spender) external view returns (uint256);
        /**
         * @dev Sets a `value` amount of tokens as the allowance of `spender` over the
         * caller's tokens.
         *
         * Returns a boolean value indicating whether the operation succeeded.
         *
         * IMPORTANT: Beware that changing an allowance with this method brings the risk
         * that someone may use both the old and the new allowance by unfortunate
         * transaction ordering. One possible solution to mitigate this race
         * condition is to first reduce the spender's allowance to 0 and set the
         * desired value afterwards:
         * https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729
         *
         * Emits an {Approval} event.
         */
        function approve(address spender, uint256 value) external returns (bool);
        /**
         * @dev Moves a `value` amount of tokens from `from` to `to` using the
         * allowance mechanism. `value` is then deducted from the caller's
         * allowance.
         *
         * Returns a boolean value indicating whether the operation succeeded.
         *
         * Emits a {Transfer} event.
         */
        function transferFrom(address from, address to, uint256 value) external returns (bool);
    }
    // SPDX-License-Identifier: MIT
    // OpenZeppelin Contracts (last updated v5.1.0) (token/ERC20/extensions/IERC20Permit.sol)
    pragma solidity ^0.8.20;
    /**
     * @dev Interface of the ERC-20 Permit extension allowing approvals to be made via signatures, as defined in
     * https://eips.ethereum.org/EIPS/eip-2612[ERC-2612].
     *
     * Adds the {permit} method, which can be used to change an account's ERC-20 allowance (see {IERC20-allowance}) by
     * presenting a message signed by the account. By not relying on {IERC20-approve}, the token holder account doesn't
     * need to send a transaction, and thus is not required to hold Ether at all.
     *
     * ==== Security Considerations
     *
     * There are two important considerations concerning the use of `permit`. The first is that a valid permit signature
     * expresses an allowance, and it should not be assumed to convey additional meaning. In particular, it should not be
     * considered as an intention to spend the allowance in any specific way. The second is that because permits have
     * built-in replay protection and can be submitted by anyone, they can be frontrun. A protocol that uses permits should
     * take this into consideration and allow a `permit` call to fail. Combining these two aspects, a pattern that may be
     * generally recommended is:
     *
     * ```solidity
     * function doThingWithPermit(..., uint256 value, uint256 deadline, uint8 v, bytes32 r, bytes32 s) public {
     *     try token.permit(msg.sender, address(this), value, deadline, v, r, s) {} catch {}
     *     doThing(..., value);
     * }
     *
     * function doThing(..., uint256 value) public {
     *     token.safeTransferFrom(msg.sender, address(this), value);
     *     ...
     * }
     * ```
     *
     * Observe that: 1) `msg.sender` is used as the owner, leaving no ambiguity as to the signer intent, and 2) the use of
     * `try/catch` allows the permit to fail and makes the code tolerant to frontrunning. (See also
     * {SafeERC20-safeTransferFrom}).
     *
     * Additionally, note that smart contract wallets (such as Argent or Safe) are not able to produce permit signatures, so
     * contracts should have entry points that don't rely on permit.
     */
    interface IERC20Permit {
        /**
         * @dev Sets `value` as the allowance of `spender` over ``owner``'s tokens,
         * given ``owner``'s signed approval.
         *
         * IMPORTANT: The same issues {IERC20-approve} has related to transaction
         * ordering also apply here.
         *
         * Emits an {Approval} event.
         *
         * Requirements:
         *
         * - `spender` cannot be the zero address.
         * - `deadline` must be a timestamp in the future.
         * - `v`, `r` and `s` must be a valid `secp256k1` signature from `owner`
         * over the EIP712-formatted function arguments.
         * - the signature must use ``owner``'s current nonce (see {nonces}).
         *
         * For more information on the signature format, see the
         * https://eips.ethereum.org/EIPS/eip-2612#specification[relevant EIP
         * section].
         *
         * CAUTION: See Security Considerations above.
         */
        function permit(
            address owner,
            address spender,
            uint256 value,
            uint256 deadline,
            uint8 v,
            bytes32 r,
            bytes32 s
        ) external;
        /**
         * @dev Returns the current nonce for `owner`. This value must be
         * included whenever a signature is generated for {permit}.
         *
         * Every successful call to {permit} increases ``owner``'s nonce by one. This
         * prevents a signature from being used multiple times.
         */
        function nonces(address owner) external view returns (uint256);
        /**
         * @dev Returns the domain separator used in the encoding of the signature for {permit}, as defined by {EIP712}.
         */
        // solhint-disable-next-line func-name-mixedcase
        function DOMAIN_SEPARATOR() external view returns (bytes32);
    }
    // SPDX-License-Identifier: MIT
    // OpenZeppelin Contracts (last updated v5.1.0) (access/extensions/IAccessControlDefaultAdminRules.sol)
    pragma solidity ^0.8.20;
    import {IAccessControl} from "../IAccessControl.sol";
    /**
     * @dev External interface of AccessControlDefaultAdminRules declared to support ERC-165 detection.
     */
    interface IAccessControlDefaultAdminRules is IAccessControl {
        /**
         * @dev The new default admin is not a valid default admin.
         */
        error AccessControlInvalidDefaultAdmin(address defaultAdmin);
        /**
         * @dev At least one of the following rules was violated:
         *
         * - The `DEFAULT_ADMIN_ROLE` must only be managed by itself.
         * - The `DEFAULT_ADMIN_ROLE` must only be held by one account at the time.
         * - Any `DEFAULT_ADMIN_ROLE` transfer must be in two delayed steps.
         */
        error AccessControlEnforcedDefaultAdminRules();
        /**
         * @dev The delay for transferring the default admin delay is enforced and
         * the operation must wait until `schedule`.
         *
         * NOTE: `schedule` can be 0 indicating there's no transfer scheduled.
         */
        error AccessControlEnforcedDefaultAdminDelay(uint48 schedule);
        /**
         * @dev Emitted when a {defaultAdmin} transfer is started, setting `newAdmin` as the next
         * address to become the {defaultAdmin} by calling {acceptDefaultAdminTransfer} only after `acceptSchedule`
         * passes.
         */
        event DefaultAdminTransferScheduled(address indexed newAdmin, uint48 acceptSchedule);
        /**
         * @dev Emitted when a {pendingDefaultAdmin} is reset if it was never accepted, regardless of its schedule.
         */
        event DefaultAdminTransferCanceled();
        /**
         * @dev Emitted when a {defaultAdminDelay} change is started, setting `newDelay` as the next
         * delay to be applied between default admin transfer after `effectSchedule` has passed.
         */
        event DefaultAdminDelayChangeScheduled(uint48 newDelay, uint48 effectSchedule);
        /**
         * @dev Emitted when a {pendingDefaultAdminDelay} is reset if its schedule didn't pass.
         */
        event DefaultAdminDelayChangeCanceled();
        /**
         * @dev Returns the address of the current `DEFAULT_ADMIN_ROLE` holder.
         */
        function defaultAdmin() external view returns (address);
        /**
         * @dev Returns a tuple of a `newAdmin` and an accept schedule.
         *
         * After the `schedule` passes, the `newAdmin` will be able to accept the {defaultAdmin} role
         * by calling {acceptDefaultAdminTransfer}, completing the role transfer.
         *
         * A zero value only in `acceptSchedule` indicates no pending admin transfer.
         *
         * NOTE: A zero address `newAdmin` means that {defaultAdmin} is being renounced.
         */
        function pendingDefaultAdmin() external view returns (address newAdmin, uint48 acceptSchedule);
        /**
         * @dev Returns the delay required to schedule the acceptance of a {defaultAdmin} transfer started.
         *
         * This delay will be added to the current timestamp when calling {beginDefaultAdminTransfer} to set
         * the acceptance schedule.
         *
         * NOTE: If a delay change has been scheduled, it will take effect as soon as the schedule passes, making this
         * function returns the new delay. See {changeDefaultAdminDelay}.
         */
        function defaultAdminDelay() external view returns (uint48);
        /**
         * @dev Returns a tuple of `newDelay` and an effect schedule.
         *
         * After the `schedule` passes, the `newDelay` will get into effect immediately for every
         * new {defaultAdmin} transfer started with {beginDefaultAdminTransfer}.
         *
         * A zero value only in `effectSchedule` indicates no pending delay change.
         *
         * NOTE: A zero value only for `newDelay` means that the next {defaultAdminDelay}
         * will be zero after the effect schedule.
         */
        function pendingDefaultAdminDelay() external view returns (uint48 newDelay, uint48 effectSchedule);
        /**
         * @dev Starts a {defaultAdmin} transfer by setting a {pendingDefaultAdmin} scheduled for acceptance
         * after the current timestamp plus a {defaultAdminDelay}.
         *
         * Requirements:
         *
         * - Only can be called by the current {defaultAdmin}.
         *
         * Emits a DefaultAdminRoleChangeStarted event.
         */
        function beginDefaultAdminTransfer(address newAdmin) external;
        /**
         * @dev Cancels a {defaultAdmin} transfer previously started with {beginDefaultAdminTransfer}.
         *
         * A {pendingDefaultAdmin} not yet accepted can also be cancelled with this function.
         *
         * Requirements:
         *
         * - Only can be called by the current {defaultAdmin}.
         *
         * May emit a DefaultAdminTransferCanceled event.
         */
        function cancelDefaultAdminTransfer() external;
        /**
         * @dev Completes a {defaultAdmin} transfer previously started with {beginDefaultAdminTransfer}.
         *
         * After calling the function:
         *
         * - `DEFAULT_ADMIN_ROLE` should be granted to the caller.
         * - `DEFAULT_ADMIN_ROLE` should be revoked from the previous holder.
         * - {pendingDefaultAdmin} should be reset to zero values.
         *
         * Requirements:
         *
         * - Only can be called by the {pendingDefaultAdmin}'s `newAdmin`.
         * - The {pendingDefaultAdmin}'s `acceptSchedule` should've passed.
         */
        function acceptDefaultAdminTransfer() external;
        /**
         * @dev Initiates a {defaultAdminDelay} update by setting a {pendingDefaultAdminDelay} scheduled for getting
         * into effect after the current timestamp plus a {defaultAdminDelay}.
         *
         * This function guarantees that any call to {beginDefaultAdminTransfer} done between the timestamp this
         * method is called and the {pendingDefaultAdminDelay} effect schedule will use the current {defaultAdminDelay}
         * set before calling.
         *
         * The {pendingDefaultAdminDelay}'s effect schedule is defined in a way that waiting until the schedule and then
         * calling {beginDefaultAdminTransfer} with the new delay will take at least the same as another {defaultAdmin}
         * complete transfer (including acceptance).
         *
         * The schedule is designed for two scenarios:
         *
         * - When the delay is changed for a larger one the schedule is `block.timestamp + newDelay` capped by
         * {defaultAdminDelayIncreaseWait}.
         * - When the delay is changed for a shorter one, the schedule is `block.timestamp + (current delay - new delay)`.
         *
         * A {pendingDefaultAdminDelay} that never got into effect will be canceled in favor of a new scheduled change.
         *
         * Requirements:
         *
         * - Only can be called by the current {defaultAdmin}.
         *
         * Emits a DefaultAdminDelayChangeScheduled event and may emit a DefaultAdminDelayChangeCanceled event.
         */
        function changeDefaultAdminDelay(uint48 newDelay) external;
        /**
         * @dev Cancels a scheduled {defaultAdminDelay} change.
         *
         * Requirements:
         *
         * - Only can be called by the current {defaultAdmin}.
         *
         * May emit a DefaultAdminDelayChangeCanceled event.
         */
        function rollbackDefaultAdminDelay() external;
        /**
         * @dev Maximum time in seconds for an increase to {defaultAdminDelay} (that is scheduled using {changeDefaultAdminDelay})
         * to take effect. Default to 5 days.
         *
         * When the {defaultAdminDelay} is scheduled to be increased, it goes into effect after the new delay has passed with
         * the purpose of giving enough time for reverting any accidental change (i.e. using milliseconds instead of seconds)
         * that may lock the contract. However, to avoid excessive schedules, the wait is capped by this function and it can
         * be overrode for a custom {defaultAdminDelay} increase scheduling.
         *
         * IMPORTANT: Make sure to add a reasonable amount of time while overriding this value, otherwise,
         * there's a risk of setting a high new delay that goes into effect almost immediately without the
         * possibility of human intervention in the case of an input error (eg. set milliseconds instead of seconds).
         */
        function defaultAdminDelayIncreaseWait() external view returns (uint48);
    }
    // SPDX-License-Identifier: MIT
    // OpenZeppelin Contracts (last updated v5.0.0) (access/AccessControl.sol)
    pragma solidity ^0.8.20;
    import {IAccessControl} from "@openzeppelin/contracts/access/IAccessControl.sol";
    import {ContextUpgradeable} from "../utils/ContextUpgradeable.sol";
    import {ERC165Upgradeable} from "../utils/introspection/ERC165Upgradeable.sol";
    import {Initializable} from "../proxy/utils/Initializable.sol";
    /**
     * @dev Contract module that allows children to implement role-based access
     * control mechanisms. This is a lightweight version that doesn't allow enumerating role
     * members except through off-chain means by accessing the contract event logs. Some
     * applications may benefit from on-chain enumerability, for those cases see
     * {AccessControlEnumerable}.
     *
     * Roles are referred to by their `bytes32` identifier. These should be exposed
     * in the external API and be unique. The best way to achieve this is by
     * using `public constant` hash digests:
     *
     * ```solidity
     * bytes32 public constant MY_ROLE = keccak256("MY_ROLE");
     * ```
     *
     * Roles can be used to represent a set of permissions. To restrict access to a
     * function call, use {hasRole}:
     *
     * ```solidity
     * function foo() public {
     *     require(hasRole(MY_ROLE, msg.sender));
     *     ...
     * }
     * ```
     *
     * Roles can be granted and revoked dynamically via the {grantRole} and
     * {revokeRole} functions. Each role has an associated admin role, and only
     * accounts that have a role's admin role can call {grantRole} and {revokeRole}.
     *
     * By default, the admin role for all roles is `DEFAULT_ADMIN_ROLE`, which means
     * that only accounts with this role will be able to grant or revoke other
     * roles. More complex role relationships can be created by using
     * {_setRoleAdmin}.
     *
     * WARNING: The `DEFAULT_ADMIN_ROLE` is also its own admin: it has permission to
     * grant and revoke this role. Extra precautions should be taken to secure
     * accounts that have been granted it. We recommend using {AccessControlDefaultAdminRules}
     * to enforce additional security measures for this role.
     */
    abstract contract AccessControlUpgradeable is Initializable, ContextUpgradeable, IAccessControl, ERC165Upgradeable {
        struct RoleData {
            mapping(address account => bool) hasRole;
            bytes32 adminRole;
        }
        bytes32 public constant DEFAULT_ADMIN_ROLE = 0x00;
        /// @custom:storage-location erc7201:openzeppelin.storage.AccessControl
        struct AccessControlStorage {
            mapping(bytes32 role => RoleData) _roles;
        }
        // keccak256(abi.encode(uint256(keccak256("openzeppelin.storage.AccessControl")) - 1)) & ~bytes32(uint256(0xff))
        bytes32 private constant AccessControlStorageLocation = 0x02dd7bc7dec4dceedda775e58dd541e08a116c6c53815c0bd028192f7b626800;
        function _getAccessControlStorage() private pure returns (AccessControlStorage storage $) {
            assembly {
                $.slot := AccessControlStorageLocation
            }
        }
        /**
         * @dev Modifier that checks that an account has a specific role. Reverts
         * with an {AccessControlUnauthorizedAccount} error including the required role.
         */
        modifier onlyRole(bytes32 role) {
            _checkRole(role);
            _;
        }
        function __AccessControl_init() internal onlyInitializing {
        }
        function __AccessControl_init_unchained() internal onlyInitializing {
        }
        /**
         * @dev See {IERC165-supportsInterface}.
         */
        function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) {
            return interfaceId == type(IAccessControl).interfaceId || super.supportsInterface(interfaceId);
        }
        /**
         * @dev Returns `true` if `account` has been granted `role`.
         */
        function hasRole(bytes32 role, address account) public view virtual returns (bool) {
            AccessControlStorage storage $ = _getAccessControlStorage();
            return $._roles[role].hasRole[account];
        }
        /**
         * @dev Reverts with an {AccessControlUnauthorizedAccount} error if `_msgSender()`
         * is missing `role`. Overriding this function changes the behavior of the {onlyRole} modifier.
         */
        function _checkRole(bytes32 role) internal view virtual {
            _checkRole(role, _msgSender());
        }
        /**
         * @dev Reverts with an {AccessControlUnauthorizedAccount} error if `account`
         * is missing `role`.
         */
        function _checkRole(bytes32 role, address account) internal view virtual {
            if (!hasRole(role, account)) {
                revert AccessControlUnauthorizedAccount(account, role);
            }
        }
        /**
         * @dev Returns the admin role that controls `role`. See {grantRole} and
         * {revokeRole}.
         *
         * To change a role's admin, use {_setRoleAdmin}.
         */
        function getRoleAdmin(bytes32 role) public view virtual returns (bytes32) {
            AccessControlStorage storage $ = _getAccessControlStorage();
            return $._roles[role].adminRole;
        }
        /**
         * @dev Grants `role` to `account`.
         *
         * If `account` had not been already granted `role`, emits a {RoleGranted}
         * event.
         *
         * Requirements:
         *
         * - the caller must have ``role``'s admin role.
         *
         * May emit a {RoleGranted} event.
         */
        function grantRole(bytes32 role, address account) public virtual onlyRole(getRoleAdmin(role)) {
            _grantRole(role, account);
        }
        /**
         * @dev Revokes `role` from `account`.
         *
         * If `account` had been granted `role`, emits a {RoleRevoked} event.
         *
         * Requirements:
         *
         * - the caller must have ``role``'s admin role.
         *
         * May emit a {RoleRevoked} event.
         */
        function revokeRole(bytes32 role, address account) public virtual onlyRole(getRoleAdmin(role)) {
            _revokeRole(role, account);
        }
        /**
         * @dev Revokes `role` from the calling account.
         *
         * Roles are often managed via {grantRole} and {revokeRole}: this function's
         * purpose is to provide a mechanism for accounts to lose their privileges
         * if they are compromised (such as when a trusted device is misplaced).
         *
         * If the calling account had been revoked `role`, emits a {RoleRevoked}
         * event.
         *
         * Requirements:
         *
         * - the caller must be `callerConfirmation`.
         *
         * May emit a {RoleRevoked} event.
         */
        function renounceRole(bytes32 role, address callerConfirmation) public virtual {
            if (callerConfirmation != _msgSender()) {
                revert AccessControlBadConfirmation();
            }
            _revokeRole(role, callerConfirmation);
        }
        /**
         * @dev Sets `adminRole` as ``role``'s admin role.
         *
         * Emits a {RoleAdminChanged} event.
         */
        function _setRoleAdmin(bytes32 role, bytes32 adminRole) internal virtual {
            AccessControlStorage storage $ = _getAccessControlStorage();
            bytes32 previousAdminRole = getRoleAdmin(role);
            $._roles[role].adminRole = adminRole;
            emit RoleAdminChanged(role, previousAdminRole, adminRole);
        }
        /**
         * @dev Attempts to grant `role` to `account` and returns a boolean indicating if `role` was granted.
         *
         * Internal function without access restriction.
         *
         * May emit a {RoleGranted} event.
         */
        function _grantRole(bytes32 role, address account) internal virtual returns (bool) {
            AccessControlStorage storage $ = _getAccessControlStorage();
            if (!hasRole(role, account)) {
                $._roles[role].hasRole[account] = true;
                emit RoleGranted(role, account, _msgSender());
                return true;
            } else {
                return false;
            }
        }
        /**
         * @dev Attempts to revoke `role` to `account` and returns a boolean indicating if `role` was revoked.
         *
         * Internal function without access restriction.
         *
         * May emit a {RoleRevoked} event.
         */
        function _revokeRole(bytes32 role, address account) internal virtual returns (bool) {
            AccessControlStorage storage $ = _getAccessControlStorage();
            if (hasRole(role, account)) {
                $._roles[role].hasRole[account] = false;
                emit RoleRevoked(role, account, _msgSender());
                return true;
            } else {
                return false;
            }
        }
    }
    // SPDX-License-Identifier: MIT
    // OpenZeppelin Contracts (last updated v5.1.0) (access/IAccessControl.sol)
    pragma solidity ^0.8.20;
    /**
     * @dev External interface of AccessControl declared to support ERC-165 detection.
     */
    interface IAccessControl {
        /**
         * @dev The `account` is missing a role.
         */
        error AccessControlUnauthorizedAccount(address account, bytes32 neededRole);
        /**
         * @dev The caller of a function is not the expected one.
         *
         * NOTE: Don't confuse with {AccessControlUnauthorizedAccount}.
         */
        error AccessControlBadConfirmation();
        /**
         * @dev Emitted when `newAdminRole` is set as ``role``'s admin role, replacing `previousAdminRole`
         *
         * `DEFAULT_ADMIN_ROLE` is the starting admin for all roles, despite
         * {RoleAdminChanged} not being emitted signaling this.
         */
        event RoleAdminChanged(bytes32 indexed role, bytes32 indexed previousAdminRole, bytes32 indexed newAdminRole);
        /**
         * @dev Emitted when `account` is granted `role`.
         *
         * `sender` is the account that originated the contract call. This account bears the admin role (for the granted role).
         * Expected in cases where the role was granted using the internal {AccessControl-_grantRole}.
         */
        event RoleGranted(bytes32 indexed role, address indexed account, address indexed sender);
        /**
         * @dev Emitted when `account` is revoked `role`.
         *
         * `sender` is the account that originated the contract call:
         *   - if using `revokeRole`, it is the admin role bearer
         *   - if using `renounceRole`, it is the role bearer (i.e. `account`)
         */
        event RoleRevoked(bytes32 indexed role, address indexed account, address indexed sender);
        /**
         * @dev Returns `true` if `account` has been granted `role`.
         */
        function hasRole(bytes32 role, address account) external view returns (bool);
        /**
         * @dev Returns the admin role that controls `role`. See {grantRole} and
         * {revokeRole}.
         *
         * To change a role's admin, use {AccessControl-_setRoleAdmin}.
         */
        function getRoleAdmin(bytes32 role) external view returns (bytes32);
        /**
         * @dev Grants `role` to `account`.
         *
         * If `account` had not been already granted `role`, emits a {RoleGranted}
         * event.
         *
         * Requirements:
         *
         * - the caller must have ``role``'s admin role.
         */
        function grantRole(bytes32 role, address account) external;
        /**
         * @dev Revokes `role` from `account`.
         *
         * If `account` had been granted `role`, emits a {RoleRevoked} event.
         *
         * Requirements:
         *
         * - the caller must have ``role``'s admin role.
         */
        function revokeRole(bytes32 role, address account) external;
        /**
         * @dev Revokes `role` from the calling account.
         *
         * Roles are often managed via {grantRole} and {revokeRole}: this function's
         * purpose is to provide a mechanism for accounts to lose their privileges
         * if they are compromised (such as when a trusted device is misplaced).
         *
         * If the calling account had been granted `role`, emits a {RoleRevoked}
         * event.
         *
         * Requirements:
         *
         * - the caller must be `callerConfirmation`.
         */
        function renounceRole(bytes32 role, address callerConfirmation) external;
    }
    // SPDX-License-Identifier: MIT
    // OpenZeppelin Contracts (last updated v5.1.0) (utils/math/SafeCast.sol)
    // This file was procedurally generated from scripts/generate/templates/SafeCast.js.
    pragma solidity ^0.8.20;
    /**
     * @dev Wrappers over Solidity's uintXX/intXX/bool casting operators with added overflow
     * checks.
     *
     * Downcasting from uint256/int256 in Solidity does not revert on overflow. This can
     * easily result in undesired exploitation or bugs, since developers usually
     * assume that overflows raise errors. `SafeCast` restores this intuition by
     * reverting the transaction when such an operation overflows.
     *
     * Using this library instead of the unchecked operations eliminates an entire
     * class of bugs, so it's recommended to use it always.
     */
    library SafeCast {
        /**
         * @dev Value doesn't fit in an uint of `bits` size.
         */
        error SafeCastOverflowedUintDowncast(uint8 bits, uint256 value);
        /**
         * @dev An int value doesn't fit in an uint of `bits` size.
         */
        error SafeCastOverflowedIntToUint(int256 value);
        /**
         * @dev Value doesn't fit in an int of `bits` size.
         */
        error SafeCastOverflowedIntDowncast(uint8 bits, int256 value);
        /**
         * @dev An uint value doesn't fit in an int of `bits` size.
         */
        error SafeCastOverflowedUintToInt(uint256 value);
        /**
         * @dev Returns the downcasted uint248 from uint256, reverting on
         * overflow (when the input is greater than largest uint248).
         *
         * Counterpart to Solidity's `uint248` operator.
         *
         * Requirements:
         *
         * - input must fit into 248 bits
         */
        function toUint248(uint256 value) internal pure returns (uint248) {
            if (value > type(uint248).max) {
                revert SafeCastOverflowedUintDowncast(248, value);
            }
            return uint248(value);
        }
        /**
         * @dev Returns the downcasted uint240 from uint256, reverting on
         * overflow (when the input is greater than largest uint240).
         *
         * Counterpart to Solidity's `uint240` operator.
         *
         * Requirements:
         *
         * - input must fit into 240 bits
         */
        function toUint240(uint256 value) internal pure returns (uint240) {
            if (value > type(uint240).max) {
                revert SafeCastOverflowedUintDowncast(240, value);
            }
            return uint240(value);
        }
        /**
         * @dev Returns the downcasted uint232 from uint256, reverting on
         * overflow (when the input is greater than largest uint232).
         *
         * Counterpart to Solidity's `uint232` operator.
         *
         * Requirements:
         *
         * - input must fit into 232 bits
         */
        function toUint232(uint256 value) internal pure returns (uint232) {
            if (value > type(uint232).max) {
                revert SafeCastOverflowedUintDowncast(232, value);
            }
            return uint232(value);
        }
        /**
         * @dev Returns the downcasted uint224 from uint256, reverting on
         * overflow (when the input is greater than largest uint224).
         *
         * Counterpart to Solidity's `uint224` operator.
         *
         * Requirements:
         *
         * - input must fit into 224 bits
         */
        function toUint224(uint256 value) internal pure returns (uint224) {
            if (value > type(uint224).max) {
                revert SafeCastOverflowedUintDowncast(224, value);
            }
            return uint224(value);
        }
        /**
         * @dev Returns the downcasted uint216 from uint256, reverting on
         * overflow (when the input is greater than largest uint216).
         *
         * Counterpart to Solidity's `uint216` operator.
         *
         * Requirements:
         *
         * - input must fit into 216 bits
         */
        function toUint216(uint256 value) internal pure returns (uint216) {
            if (value > type(uint216).max) {
                revert SafeCastOverflowedUintDowncast(216, value);
            }
            return uint216(value);
        }
        /**
         * @dev Returns the downcasted uint208 from uint256, reverting on
         * overflow (when the input is greater than largest uint208).
         *
         * Counterpart to Solidity's `uint208` operator.
         *
         * Requirements:
         *
         * - input must fit into 208 bits
         */
        function toUint208(uint256 value) internal pure returns (uint208) {
            if (value > type(uint208).max) {
                revert SafeCastOverflowedUintDowncast(208, value);
            }
            return uint208(value);
        }
        /**
         * @dev Returns the downcasted uint200 from uint256, reverting on
         * overflow (when the input is greater than largest uint200).
         *
         * Counterpart to Solidity's `uint200` operator.
         *
         * Requirements:
         *
         * - input must fit into 200 bits
         */
        function toUint200(uint256 value) internal pure returns (uint200) {
            if (value > type(uint200).max) {
                revert SafeCastOverflowedUintDowncast(200, value);
            }
            return uint200(value);
        }
        /**
         * @dev Returns the downcasted uint192 from uint256, reverting on
         * overflow (when the input is greater than largest uint192).
         *
         * Counterpart to Solidity's `uint192` operator.
         *
         * Requirements:
         *
         * - input must fit into 192 bits
         */
        function toUint192(uint256 value) internal pure returns (uint192) {
            if (value > type(uint192).max) {
                revert SafeCastOverflowedUintDowncast(192, value);
            }
            return uint192(value);
        }
        /**
         * @dev Returns the downcasted uint184 from uint256, reverting on
         * overflow (when the input is greater than largest uint184).
         *
         * Counterpart to Solidity's `uint184` operator.
         *
         * Requirements:
         *
         * - input must fit into 184 bits
         */
        function toUint184(uint256 value) internal pure returns (uint184) {
            if (value > type(uint184).max) {
                revert SafeCastOverflowedUintDowncast(184, value);
            }
            return uint184(value);
        }
        /**
         * @dev Returns the downcasted uint176 from uint256, reverting on
         * overflow (when the input is greater than largest uint176).
         *
         * Counterpart to Solidity's `uint176` operator.
         *
         * Requirements:
         *
         * - input must fit into 176 bits
         */
        function toUint176(uint256 value) internal pure returns (uint176) {
            if (value > type(uint176).max) {
                revert SafeCastOverflowedUintDowncast(176, value);
            }
            return uint176(value);
        }
        /**
         * @dev Returns the downcasted uint168 from uint256, reverting on
         * overflow (when the input is greater than largest uint168).
         *
         * Counterpart to Solidity's `uint168` operator.
         *
         * Requirements:
         *
         * - input must fit into 168 bits
         */
        function toUint168(uint256 value) internal pure returns (uint168) {
            if (value > type(uint168).max) {
                revert SafeCastOverflowedUintDowncast(168, value);
            }
            return uint168(value);
        }
        /**
         * @dev Returns the downcasted uint160 from uint256, reverting on
         * overflow (when the input is greater than largest uint160).
         *
         * Counterpart to Solidity's `uint160` operator.
         *
         * Requirements:
         *
         * - input must fit into 160 bits
         */
        function toUint160(uint256 value) internal pure returns (uint160) {
            if (value > type(uint160).max) {
                revert SafeCastOverflowedUintDowncast(160, value);
            }
            return uint160(value);
        }
        /**
         * @dev Returns the downcasted uint152 from uint256, reverting on
         * overflow (when the input is greater than largest uint152).
         *
         * Counterpart to Solidity's `uint152` operator.
         *
         * Requirements:
         *
         * - input must fit into 152 bits
         */
        function toUint152(uint256 value) internal pure returns (uint152) {
            if (value > type(uint152).max) {
                revert SafeCastOverflowedUintDowncast(152, value);
            }
            return uint152(value);
        }
        /**
         * @dev Returns the downcasted uint144 from uint256, reverting on
         * overflow (when the input is greater than largest uint144).
         *
         * Counterpart to Solidity's `uint144` operator.
         *
         * Requirements:
         *
         * - input must fit into 144 bits
         */
        function toUint144(uint256 value) internal pure returns (uint144) {
            if (value > type(uint144).max) {
                revert SafeCastOverflowedUintDowncast(144, value);
            }
            return uint144(value);
        }
        /**
         * @dev Returns the downcasted uint136 from uint256, reverting on
         * overflow (when the input is greater than largest uint136).
         *
         * Counterpart to Solidity's `uint136` operator.
         *
         * Requirements:
         *
         * - input must fit into 136 bits
         */
        function toUint136(uint256 value) internal pure returns (uint136) {
            if (value > type(uint136).max) {
                revert SafeCastOverflowedUintDowncast(136, value);
            }
            return uint136(value);
        }
        /**
         * @dev Returns the downcasted uint128 from uint256, reverting on
         * overflow (when the input is greater than largest uint128).
         *
         * Counterpart to Solidity's `uint128` operator.
         *
         * Requirements:
         *
         * - input must fit into 128 bits
         */
        function toUint128(uint256 value) internal pure returns (uint128) {
            if (value > type(uint128).max) {
                revert SafeCastOverflowedUintDowncast(128, value);
            }
            return uint128(value);
        }
        /**
         * @dev Returns the downcasted uint120 from uint256, reverting on
         * overflow (when the input is greater than largest uint120).
         *
         * Counterpart to Solidity's `uint120` operator.
         *
         * Requirements:
         *
         * - input must fit into 120 bits
         */
        function toUint120(uint256 value) internal pure returns (uint120) {
            if (value > type(uint120).max) {
                revert SafeCastOverflowedUintDowncast(120, value);
            }
            return uint120(value);
        }
        /**
         * @dev Returns the downcasted uint112 from uint256, reverting on
         * overflow (when the input is greater than largest uint112).
         *
         * Counterpart to Solidity's `uint112` operator.
         *
         * Requirements:
         *
         * - input must fit into 112 bits
         */
        function toUint112(uint256 value) internal pure returns (uint112) {
            if (value > type(uint112).max) {
                revert SafeCastOverflowedUintDowncast(112, value);
            }
            return uint112(value);
        }
        /**
         * @dev Returns the downcasted uint104 from uint256, reverting on
         * overflow (when the input is greater than largest uint104).
         *
         * Counterpart to Solidity's `uint104` operator.
         *
         * Requirements:
         *
         * - input must fit into 104 bits
         */
        function toUint104(uint256 value) internal pure returns (uint104) {
            if (value > type(uint104).max) {
                revert SafeCastOverflowedUintDowncast(104, value);
            }
            return uint104(value);
        }
        /**
         * @dev Returns the downcasted uint96 from uint256, reverting on
         * overflow (when the input is greater than largest uint96).
         *
         * Counterpart to Solidity's `uint96` operator.
         *
         * Requirements:
         *
         * - input must fit into 96 bits
         */
        function toUint96(uint256 value) internal pure returns (uint96) {
            if (value > type(uint96).max) {
                revert SafeCastOverflowedUintDowncast(96, value);
            }
            return uint96(value);
        }
        /**
         * @dev Returns the downcasted uint88 from uint256, reverting on
         * overflow (when the input is greater than largest uint88).
         *
         * Counterpart to Solidity's `uint88` operator.
         *
         * Requirements:
         *
         * - input must fit into 88 bits
         */
        function toUint88(uint256 value) internal pure returns (uint88) {
            if (value > type(uint88).max) {
                revert SafeCastOverflowedUintDowncast(88, value);
            }
            return uint88(value);
        }
        /**
         * @dev Returns the downcasted uint80 from uint256, reverting on
         * overflow (when the input is greater than largest uint80).
         *
         * Counterpart to Solidity's `uint80` operator.
         *
         * Requirements:
         *
         * - input must fit into 80 bits
         */
        function toUint80(uint256 value) internal pure returns (uint80) {
            if (value > type(uint80).max) {
                revert SafeCastOverflowedUintDowncast(80, value);
            }
            return uint80(value);
        }
        /**
         * @dev Returns the downcasted uint72 from uint256, reverting on
         * overflow (when the input is greater than largest uint72).
         *
         * Counterpart to Solidity's `uint72` operator.
         *
         * Requirements:
         *
         * - input must fit into 72 bits
         */
        function toUint72(uint256 value) internal pure returns (uint72) {
            if (value > type(uint72).max) {
                revert SafeCastOverflowedUintDowncast(72, value);
            }
            return uint72(value);
        }
        /**
         * @dev Returns the downcasted uint64 from uint256, reverting on
         * overflow (when the input is greater than largest uint64).
         *
         * Counterpart to Solidity's `uint64` operator.
         *
         * Requirements:
         *
         * - input must fit into 64 bits
         */
        function toUint64(uint256 value) internal pure returns (uint64) {
            if (value > type(uint64).max) {
                revert SafeCastOverflowedUintDowncast(64, value);
            }
            return uint64(value);
        }
        /**
         * @dev Returns the downcasted uint56 from uint256, reverting on
         * overflow (when the input is greater than largest uint56).
         *
         * Counterpart to Solidity's `uint56` operator.
         *
         * Requirements:
         *
         * - input must fit into 56 bits
         */
        function toUint56(uint256 value) internal pure returns (uint56) {
            if (value > type(uint56).max) {
                revert SafeCastOverflowedUintDowncast(56, value);
            }
            return uint56(value);
        }
        /**
         * @dev Returns the downcasted uint48 from uint256, reverting on
         * overflow (when the input is greater than largest uint48).
         *
         * Counterpart to Solidity's `uint48` operator.
         *
         * Requirements:
         *
         * - input must fit into 48 bits
         */
        function toUint48(uint256 value) internal pure returns (uint48) {
            if (value > type(uint48).max) {
                revert SafeCastOverflowedUintDowncast(48, value);
            }
            return uint48(value);
        }
        /**
         * @dev Returns the downcasted uint40 from uint256, reverting on
         * overflow (when the input is greater than largest uint40).
         *
         * Counterpart to Solidity's `uint40` operator.
         *
         * Requirements:
         *
         * - input must fit into 40 bits
         */
        function toUint40(uint256 value) internal pure returns (uint40) {
            if (value > type(uint40).max) {
                revert SafeCastOverflowedUintDowncast(40, value);
            }
            return uint40(value);
        }
        /**
         * @dev Returns the downcasted uint32 from uint256, reverting on
         * overflow (when the input is greater than largest uint32).
         *
         * Counterpart to Solidity's `uint32` operator.
         *
         * Requirements:
         *
         * - input must fit into 32 bits
         */
        function toUint32(uint256 value) internal pure returns (uint32) {
            if (value > type(uint32).max) {
                revert SafeCastOverflowedUintDowncast(32, value);
            }
            return uint32(value);
        }
        /**
         * @dev Returns the downcasted uint24 from uint256, reverting on
         * overflow (when the input is greater than largest uint24).
         *
         * Counterpart to Solidity's `uint24` operator.
         *
         * Requirements:
         *
         * - input must fit into 24 bits
         */
        function toUint24(uint256 value) internal pure returns (uint24) {
            if (value > type(uint24).max) {
                revert SafeCastOverflowedUintDowncast(24, value);
            }
            return uint24(value);
        }
        /**
         * @dev Returns the downcasted uint16 from uint256, reverting on
         * overflow (when the input is greater than largest uint16).
         *
         * Counterpart to Solidity's `uint16` operator.
         *
         * Requirements:
         *
         * - input must fit into 16 bits
         */
        function toUint16(uint256 value) internal pure returns (uint16) {
            if (value > type(uint16).max) {
                revert SafeCastOverflowedUintDowncast(16, value);
            }
            return uint16(value);
        }
        /**
         * @dev Returns the downcasted uint8 from uint256, reverting on
         * overflow (when the input is greater than largest uint8).
         *
         * Counterpart to Solidity's `uint8` operator.
         *
         * Requirements:
         *
         * - input must fit into 8 bits
         */
        function toUint8(uint256 value) internal pure returns (uint8) {
            if (value > type(uint8).max) {
                revert SafeCastOverflowedUintDowncast(8, value);
            }
            return uint8(value);
        }
        /**
         * @dev Converts a signed int256 into an unsigned uint256.
         *
         * Requirements:
         *
         * - input must be greater than or equal to 0.
         */
        function toUint256(int256 value) internal pure returns (uint256) {
            if (value < 0) {
                revert SafeCastOverflowedIntToUint(value);
            }
            return uint256(value);
        }
        /**
         * @dev Returns the downcasted int248 from int256, reverting on
         * overflow (when the input is less than smallest int248 or
         * greater than largest int248).
         *
         * Counterpart to Solidity's `int248` operator.
         *
         * Requirements:
         *
         * - input must fit into 248 bits
         */
        function toInt248(int256 value) internal pure returns (int248 downcasted) {
            downcasted = int248(value);
            if (downcasted != value) {
                revert SafeCastOverflowedIntDowncast(248, value);
            }
        }
        /**
         * @dev Returns the downcasted int240 from int256, reverting on
         * overflow (when the input is less than smallest int240 or
         * greater than largest int240).
         *
         * Counterpart to Solidity's `int240` operator.
         *
         * Requirements:
         *
         * - input must fit into 240 bits
         */
        function toInt240(int256 value) internal pure returns (int240 downcasted) {
            downcasted = int240(value);
            if (downcasted != value) {
                revert SafeCastOverflowedIntDowncast(240, value);
            }
        }
        /**
         * @dev Returns the downcasted int232 from int256, reverting on
         * overflow (when the input is less than smallest int232 or
         * greater than largest int232).
         *
         * Counterpart to Solidity's `int232` operator.
         *
         * Requirements:
         *
         * - input must fit into 232 bits
         */
        function toInt232(int256 value) internal pure returns (int232 downcasted) {
            downcasted = int232(value);
            if (downcasted != value) {
                revert SafeCastOverflowedIntDowncast(232, value);
            }
        }
        /**
         * @dev Returns the downcasted int224 from int256, reverting on
         * overflow (when the input is less than smallest int224 or
         * greater than largest int224).
         *
         * Counterpart to Solidity's `int224` operator.
         *
         * Requirements:
         *
         * - input must fit into 224 bits
         */
        function toInt224(int256 value) internal pure returns (int224 downcasted) {
            downcasted = int224(value);
            if (downcasted != value) {
                revert SafeCastOverflowedIntDowncast(224, value);
            }
        }
        /**
         * @dev Returns the downcasted int216 from int256, reverting on
         * overflow (when the input is less than smallest int216 or
         * greater than largest int216).
         *
         * Counterpart to Solidity's `int216` operator.
         *
         * Requirements:
         *
         * - input must fit into 216 bits
         */
        function toInt216(int256 value) internal pure returns (int216 downcasted) {
            downcasted = int216(value);
            if (downcasted != value) {
                revert SafeCastOverflowedIntDowncast(216, value);
            }
        }
        /**
         * @dev Returns the downcasted int208 from int256, reverting on
         * overflow (when the input is less than smallest int208 or
         * greater than largest int208).
         *
         * Counterpart to Solidity's `int208` operator.
         *
         * Requirements:
         *
         * - input must fit into 208 bits
         */
        function toInt208(int256 value) internal pure returns (int208 downcasted) {
            downcasted = int208(value);
            if (downcasted != value) {
                revert SafeCastOverflowedIntDowncast(208, value);
            }
        }
        /**
         * @dev Returns the downcasted int200 from int256, reverting on
         * overflow (when the input is less than smallest int200 or
         * greater than largest int200).
         *
         * Counterpart to Solidity's `int200` operator.
         *
         * Requirements:
         *
         * - input must fit into 200 bits
         */
        function toInt200(int256 value) internal pure returns (int200 downcasted) {
            downcasted = int200(value);
            if (downcasted != value) {
                revert SafeCastOverflowedIntDowncast(200, value);
            }
        }
        /**
         * @dev Returns the downcasted int192 from int256, reverting on
         * overflow (when the input is less than smallest int192 or
         * greater than largest int192).
         *
         * Counterpart to Solidity's `int192` operator.
         *
         * Requirements:
         *
         * - input must fit into 192 bits
         */
        function toInt192(int256 value) internal pure returns (int192 downcasted) {
            downcasted = int192(value);
            if (downcasted != value) {
                revert SafeCastOverflowedIntDowncast(192, value);
            }
        }
        /**
         * @dev Returns the downcasted int184 from int256, reverting on
         * overflow (when the input is less than smallest int184 or
         * greater than largest int184).
         *
         * Counterpart to Solidity's `int184` operator.
         *
         * Requirements:
         *
         * - input must fit into 184 bits
         */
        function toInt184(int256 value) internal pure returns (int184 downcasted) {
            downcasted = int184(value);
            if (downcasted != value) {
                revert SafeCastOverflowedIntDowncast(184, value);
            }
        }
        /**
         * @dev Returns the downcasted int176 from int256, reverting on
         * overflow (when the input is less than smallest int176 or
         * greater than largest int176).
         *
         * Counterpart to Solidity's `int176` operator.
         *
         * Requirements:
         *
         * - input must fit into 176 bits
         */
        function toInt176(int256 value) internal pure returns (int176 downcasted) {
            downcasted = int176(value);
            if (downcasted != value) {
                revert SafeCastOverflowedIntDowncast(176, value);
            }
        }
        /**
         * @dev Returns the downcasted int168 from int256, reverting on
         * overflow (when the input is less than smallest int168 or
         * greater than largest int168).
         *
         * Counterpart to Solidity's `int168` operator.
         *
         * Requirements:
         *
         * - input must fit into 168 bits
         */
        function toInt168(int256 value) internal pure returns (int168 downcasted) {
            downcasted = int168(value);
            if (downcasted != value) {
                revert SafeCastOverflowedIntDowncast(168, value);
            }
        }
        /**
         * @dev Returns the downcasted int160 from int256, reverting on
         * overflow (when the input is less than smallest int160 or
         * greater than largest int160).
         *
         * Counterpart to Solidity's `int160` operator.
         *
         * Requirements:
         *
         * - input must fit into 160 bits
         */
        function toInt160(int256 value) internal pure returns (int160 downcasted) {
            downcasted = int160(value);
            if (downcasted != value) {
                revert SafeCastOverflowedIntDowncast(160, value);
            }
        }
        /**
         * @dev Returns the downcasted int152 from int256, reverting on
         * overflow (when the input is less than smallest int152 or
         * greater than largest int152).
         *
         * Counterpart to Solidity's `int152` operator.
         *
         * Requirements:
         *
         * - input must fit into 152 bits
         */
        function toInt152(int256 value) internal pure returns (int152 downcasted) {
            downcasted = int152(value);
            if (downcasted != value) {
                revert SafeCastOverflowedIntDowncast(152, value);
            }
        }
        /**
         * @dev Returns the downcasted int144 from int256, reverting on
         * overflow (when the input is less than smallest int144 or
         * greater than largest int144).
         *
         * Counterpart to Solidity's `int144` operator.
         *
         * Requirements:
         *
         * - input must fit into 144 bits
         */
        function toInt144(int256 value) internal pure returns (int144 downcasted) {
            downcasted = int144(value);
            if (downcasted != value) {
                revert SafeCastOverflowedIntDowncast(144, value);
            }
        }
        /**
         * @dev Returns the downcasted int136 from int256, reverting on
         * overflow (when the input is less than smallest int136 or
         * greater than largest int136).
         *
         * Counterpart to Solidity's `int136` operator.
         *
         * Requirements:
         *
         * - input must fit into 136 bits
         */
        function toInt136(int256 value) internal pure returns (int136 downcasted) {
            downcasted = int136(value);
            if (downcasted != value) {
                revert SafeCastOverflowedIntDowncast(136, value);
            }
        }
        /**
         * @dev Returns the downcasted int128 from int256, reverting on
         * overflow (when the input is less than smallest int128 or
         * greater than largest int128).
         *
         * Counterpart to Solidity's `int128` operator.
         *
         * Requirements:
         *
         * - input must fit into 128 bits
         */
        function toInt128(int256 value) internal pure returns (int128 downcasted) {
            downcasted = int128(value);
            if (downcasted != value) {
                revert SafeCastOverflowedIntDowncast(128, value);
            }
        }
        /**
         * @dev Returns the downcasted int120 from int256, reverting on
         * overflow (when the input is less than smallest int120 or
         * greater than largest int120).
         *
         * Counterpart to Solidity's `int120` operator.
         *
         * Requirements:
         *
         * - input must fit into 120 bits
         */
        function toInt120(int256 value) internal pure returns (int120 downcasted) {
            downcasted = int120(value);
            if (downcasted != value) {
                revert SafeCastOverflowedIntDowncast(120, value);
            }
        }
        /**
         * @dev Returns the downcasted int112 from int256, reverting on
         * overflow (when the input is less than smallest int112 or
         * greater than largest int112).
         *
         * Counterpart to Solidity's `int112` operator.
         *
         * Requirements:
         *
         * - input must fit into 112 bits
         */
        function toInt112(int256 value) internal pure returns (int112 downcasted) {
            downcasted = int112(value);
            if (downcasted != value) {
                revert SafeCastOverflowedIntDowncast(112, value);
            }
        }
        /**
         * @dev Returns the downcasted int104 from int256, reverting on
         * overflow (when the input is less than smallest int104 or
         * greater than largest int104).
         *
         * Counterpart to Solidity's `int104` operator.
         *
         * Requirements:
         *
         * - input must fit into 104 bits
         */
        function toInt104(int256 value) internal pure returns (int104 downcasted) {
            downcasted = int104(value);
            if (downcasted != value) {
                revert SafeCastOverflowedIntDowncast(104, value);
            }
        }
        /**
         * @dev Returns the downcasted int96 from int256, reverting on
         * overflow (when the input is less than smallest int96 or
         * greater than largest int96).
         *
         * Counterpart to Solidity's `int96` operator.
         *
         * Requirements:
         *
         * - input must fit into 96 bits
         */
        function toInt96(int256 value) internal pure returns (int96 downcasted) {
            downcasted = int96(value);
            if (downcasted != value) {
                revert SafeCastOverflowedIntDowncast(96, value);
            }
        }
        /**
         * @dev Returns the downcasted int88 from int256, reverting on
         * overflow (when the input is less than smallest int88 or
         * greater than largest int88).
         *
         * Counterpart to Solidity's `int88` operator.
         *
         * Requirements:
         *
         * - input must fit into 88 bits
         */
        function toInt88(int256 value) internal pure returns (int88 downcasted) {
            downcasted = int88(value);
            if (downcasted != value) {
                revert SafeCastOverflowedIntDowncast(88, value);
            }
        }
        /**
         * @dev Returns the downcasted int80 from int256, reverting on
         * overflow (when the input is less than smallest int80 or
         * greater than largest int80).
         *
         * Counterpart to Solidity's `int80` operator.
         *
         * Requirements:
         *
         * - input must fit into 80 bits
         */
        function toInt80(int256 value) internal pure returns (int80 downcasted) {
            downcasted = int80(value);
            if (downcasted != value) {
                revert SafeCastOverflowedIntDowncast(80, value);
            }
        }
        /**
         * @dev Returns the downcasted int72 from int256, reverting on
         * overflow (when the input is less than smallest int72 or
         * greater than largest int72).
         *
         * Counterpart to Solidity's `int72` operator.
         *
         * Requirements:
         *
         * - input must fit into 72 bits
         */
        function toInt72(int256 value) internal pure returns (int72 downcasted) {
            downcasted = int72(value);
            if (downcasted != value) {
                revert SafeCastOverflowedIntDowncast(72, value);
            }
        }
        /**
         * @dev Returns the downcasted int64 from int256, reverting on
         * overflow (when the input is less than smallest int64 or
         * greater than largest int64).
         *
         * Counterpart to Solidity's `int64` operator.
         *
         * Requirements:
         *
         * - input must fit into 64 bits
         */
        function toInt64(int256 value) internal pure returns (int64 downcasted) {
            downcasted = int64(value);
            if (downcasted != value) {
                revert SafeCastOverflowedIntDowncast(64, value);
            }
        }
        /**
         * @dev Returns the downcasted int56 from int256, reverting on
         * overflow (when the input is less than smallest int56 or
         * greater than largest int56).
         *
         * Counterpart to Solidity's `int56` operator.
         *
         * Requirements:
         *
         * - input must fit into 56 bits
         */
        function toInt56(int256 value) internal pure returns (int56 downcasted) {
            downcasted = int56(value);
            if (downcasted != value) {
                revert SafeCastOverflowedIntDowncast(56, value);
            }
        }
        /**
         * @dev Returns the downcasted int48 from int256, reverting on
         * overflow (when the input is less than smallest int48 or
         * greater than largest int48).
         *
         * Counterpart to Solidity's `int48` operator.
         *
         * Requirements:
         *
         * - input must fit into 48 bits
         */
        function toInt48(int256 value) internal pure returns (int48 downcasted) {
            downcasted = int48(value);
            if (downcasted != value) {
                revert SafeCastOverflowedIntDowncast(48, value);
            }
        }
        /**
         * @dev Returns the downcasted int40 from int256, reverting on
         * overflow (when the input is less than smallest int40 or
         * greater than largest int40).
         *
         * Counterpart to Solidity's `int40` operator.
         *
         * Requirements:
         *
         * - input must fit into 40 bits
         */
        function toInt40(int256 value) internal pure returns (int40 downcasted) {
            downcasted = int40(value);
            if (downcasted != value) {
                revert SafeCastOverflowedIntDowncast(40, value);
            }
        }
        /**
         * @dev Returns the downcasted int32 from int256, reverting on
         * overflow (when the input is less than smallest int32 or
         * greater than largest int32).
         *
         * Counterpart to Solidity's `int32` operator.
         *
         * Requirements:
         *
         * - input must fit into 32 bits
         */
        function toInt32(int256 value) internal pure returns (int32 downcasted) {
            downcasted = int32(value);
            if (downcasted != value) {
                revert SafeCastOverflowedIntDowncast(32, value);
            }
        }
        /**
         * @dev Returns the downcasted int24 from int256, reverting on
         * overflow (when the input is less than smallest int24 or
         * greater than largest int24).
         *
         * Counterpart to Solidity's `int24` operator.
         *
         * Requirements:
         *
         * - input must fit into 24 bits
         */
        function toInt24(int256 value) internal pure returns (int24 downcasted) {
            downcasted = int24(value);
            if (downcasted != value) {
                revert SafeCastOverflowedIntDowncast(24, value);
            }
        }
        /**
         * @dev Returns the downcasted int16 from int256, reverting on
         * overflow (when the input is less than smallest int16 or
         * greater than largest int16).
         *
         * Counterpart to Solidity's `int16` operator.
         *
         * Requirements:
         *
         * - input must fit into 16 bits
         */
        function toInt16(int256 value) internal pure returns (int16 downcasted) {
            downcasted = int16(value);
            if (downcasted != value) {
                revert SafeCastOverflowedIntDowncast(16, value);
            }
        }
        /**
         * @dev Returns the downcasted int8 from int256, reverting on
         * overflow (when the input is less than smallest int8 or
         * greater than largest int8).
         *
         * Counterpart to Solidity's `int8` operator.
         *
         * Requirements:
         *
         * - input must fit into 8 bits
         */
        function toInt8(int256 value) internal pure returns (int8 downcasted) {
            downcasted = int8(value);
            if (downcasted != value) {
                revert SafeCastOverflowedIntDowncast(8, value);
            }
        }
        /**
         * @dev Converts an unsigned uint256 into a signed int256.
         *
         * Requirements:
         *
         * - input must be less than or equal to maxInt256.
         */
        function toInt256(uint256 value) internal pure returns (int256) {
            // Note: Unsafe cast below is okay because `type(int256).max` is guaranteed to be positive
            if (value > uint256(type(int256).max)) {
                revert SafeCastOverflowedUintToInt(value);
            }
            return int256(value);
        }
        /**
         * @dev Cast a boolean (false or true) to a uint256 (0 or 1) with no jump.
         */
        function toUint(bool b) internal pure returns (uint256 u) {
            assembly ("memory-safe") {
                u := iszero(iszero(b))
            }
        }
    }
    // SPDX-License-Identifier: MIT
    // OpenZeppelin Contracts (last updated v5.1.0) (utils/math/Math.sol)
    pragma solidity ^0.8.20;
    import {Panic} from "../Panic.sol";
    import {SafeCast} from "./SafeCast.sol";
    /**
     * @dev Standard math utilities missing in the Solidity language.
     */
    library Math {
        enum Rounding {
            Floor, // Toward negative infinity
            Ceil, // Toward positive infinity
            Trunc, // Toward zero
            Expand // Away from zero
        }
        /**
         * @dev Returns the addition of two unsigned integers, with an success flag (no overflow).
         */
        function tryAdd(uint256 a, uint256 b) internal pure returns (bool success, uint256 result) {
            unchecked {
                uint256 c = a + b;
                if (c < a) return (false, 0);
                return (true, c);
            }
        }
        /**
         * @dev Returns the subtraction of two unsigned integers, with an success flag (no overflow).
         */
        function trySub(uint256 a, uint256 b) internal pure returns (bool success, uint256 result) {
            unchecked {
                if (b > a) return (false, 0);
                return (true, a - b);
            }
        }
        /**
         * @dev Returns the multiplication of two unsigned integers, with an success flag (no overflow).
         */
        function tryMul(uint256 a, uint256 b) internal pure returns (bool success, uint256 result) {
            unchecked {
                // Gas optimization: this is cheaper than requiring 'a' not being zero, but the
                // benefit is lost if 'b' is also tested.
                // See: https://github.com/OpenZeppelin/openzeppelin-contracts/pull/522
                if (a == 0) return (true, 0);
                uint256 c = a * b;
                if (c / a != b) return (false, 0);
                return (true, c);
            }
        }
        /**
         * @dev Returns the division of two unsigned integers, with a success flag (no division by zero).
         */
        function tryDiv(uint256 a, uint256 b) internal pure returns (bool success, uint256 result) {
            unchecked {
                if (b == 0) return (false, 0);
                return (true, a / b);
            }
        }
        /**
         * @dev Returns the remainder of dividing two unsigned integers, with a success flag (no division by zero).
         */
        function tryMod(uint256 a, uint256 b) internal pure returns (bool success, uint256 result) {
            unchecked {
                if (b == 0) return (false, 0);
                return (true, a % b);
            }
        }
        /**
         * @dev Branchless ternary evaluation for `a ? b : c`. Gas costs are constant.
         *
         * IMPORTANT: This function may reduce bytecode size and consume less gas when used standalone.
         * However, the compiler may optimize Solidity ternary operations (i.e. `a ? b : c`) to only compute
         * one branch when needed, making this function more expensive.
         */
        function ternary(bool condition, uint256 a, uint256 b) internal pure returns (uint256) {
            unchecked {
                // branchless ternary works because:
                // b ^ (a ^ b) == a
                // b ^ 0 == b
                return b ^ ((a ^ b) * SafeCast.toUint(condition));
            }
        }
        /**
         * @dev Returns the largest of two numbers.
         */
        function max(uint256 a, uint256 b) internal pure returns (uint256) {
            return ternary(a > b, a, b);
        }
        /**
         * @dev Returns the smallest of two numbers.
         */
        function min(uint256 a, uint256 b) internal pure returns (uint256) {
            return ternary(a < b, a, b);
        }
        /**
         * @dev Returns the average of two numbers. The result is rounded towards
         * zero.
         */
        function average(uint256 a, uint256 b) internal pure returns (uint256) {
            // (a + b) / 2 can overflow.
            return (a & b) + (a ^ b) / 2;
        }
        /**
         * @dev Returns the ceiling of the division of two numbers.
         *
         * This differs from standard division with `/` in that it rounds towards infinity instead
         * of rounding towards zero.
         */
        function ceilDiv(uint256 a, uint256 b) internal pure returns (uint256) {
            if (b == 0) {
                // Guarantee the same behavior as in a regular Solidity division.
                Panic.panic(Panic.DIVISION_BY_ZERO);
            }
            // The following calculation ensures accurate ceiling division without overflow.
            // Since a is non-zero, (a - 1) / b will not overflow.
            // The largest possible result occurs when (a - 1) / b is type(uint256).max,
            // but the largest value we can obtain is type(uint256).max - 1, which happens
            // when a = type(uint256).max and b = 1.
            unchecked {
                return SafeCast.toUint(a > 0) * ((a - 1) / b + 1);
            }
        }
        /**
         * @dev Calculates floor(x * y / denominator) with full precision. Throws if result overflows a uint256 or
         * denominator == 0.
         *
         * Original credit to Remco Bloemen under MIT license (https://xn--2-umb.com/21/muldiv) with further edits by
         * Uniswap Labs also under MIT license.
         */
        function mulDiv(uint256 x, uint256 y, uint256 denominator) internal pure returns (uint256 result) {
            unchecked {
                // 512-bit multiply [prod1 prod0] = x * y. Compute the product mod 2²⁵⁶ and mod 2²⁵⁶ - 1, then use
                // the Chinese Remainder Theorem to reconstruct the 512 bit result. The result is stored in two 256
                // variables such that product = prod1 * 2²⁵⁶ + prod0.
                uint256 prod0 = x * y; // Least significant 256 bits of the product
                uint256 prod1; // Most significant 256 bits of the product
                assembly {
                    let mm := mulmod(x, y, not(0))
                    prod1 := sub(sub(mm, prod0), lt(mm, prod0))
                }
                // Handle non-overflow cases, 256 by 256 division.
                if (prod1 == 0) {
                    // Solidity will revert if denominator == 0, unlike the div opcode on its own.
                    // The surrounding unchecked block does not change this fact.
                    // See https://docs.soliditylang.org/en/latest/control-structures.html#checked-or-unchecked-arithmetic.
                    return prod0 / denominator;
                }
                // Make sure the result is less than 2²⁵⁶. Also prevents denominator == 0.
                if (denominator <= prod1) {
                    Panic.panic(ternary(denominator == 0, Panic.DIVISION_BY_ZERO, Panic.UNDER_OVERFLOW));
                }
                ///////////////////////////////////////////////
                // 512 by 256 division.
                ///////////////////////////////////////////////
                // Make division exact by subtracting the remainder from [prod1 prod0].
                uint256 remainder;
                assembly {
                    // Compute remainder using mulmod.
                    remainder := mulmod(x, y, denominator)
                    // Subtract 256 bit number from 512 bit number.
                    prod1 := sub(prod1, gt(remainder, prod0))
                    prod0 := sub(prod0, remainder)
                }
                // Factor powers of two out of denominator and compute largest power of two divisor of denominator.
                // Always >= 1. See https://cs.stackexchange.com/q/138556/92363.
                uint256 twos = denominator & (0 - denominator);
                assembly {
                    // Divide denominator by twos.
                    denominator := div(denominator, twos)
                    // Divide [prod1 prod0] by twos.
                    prod0 := div(prod0, twos)
                    // Flip twos such that it is 2²⁵⁶ / twos. If twos is zero, then it becomes one.
                    twos := add(div(sub(0, twos), twos), 1)
                }
                // Shift in bits from prod1 into prod0.
                prod0 |= prod1 * twos;
                // Invert denominator mod 2²⁵⁶. Now that denominator is an odd number, it has an inverse modulo 2²⁵⁶ such
                // that denominator * inv ≡ 1 mod 2²⁵⁶. Compute the inverse by starting with a seed that is correct for
                // four bits. That is, denominator * inv ≡ 1 mod 2⁴.
                uint256 inverse = (3 * denominator) ^ 2;
                // Use the Newton-Raphson iteration to improve the precision. Thanks to Hensel's lifting lemma, this also
                // works in modular arithmetic, doubling the correct bits in each step.
                inverse *= 2 - denominator * inverse; // inverse mod 2⁸
                inverse *= 2 - denominator * inverse; // inverse mod 2¹⁶
                inverse *= 2 - denominator * inverse; // inverse mod 2³²
                inverse *= 2 - denominator * inverse; // inverse mod 2⁶⁴
                inverse *= 2 - denominator * inverse; // inverse mod 2¹²⁸
                inverse *= 2 - denominator * inverse; // inverse mod 2²⁵⁶
                // Because the division is now exact we can divide by multiplying with the modular inverse of denominator.
                // This will give us the correct result modulo 2²⁵⁶. Since the preconditions guarantee that the outcome is
                // less than 2²⁵⁶, this is the final result. We don't need to compute the high bits of the result and prod1
                // is no longer required.
                result = prod0 * inverse;
                return result;
            }
        }
        /**
         * @dev Calculates x * y / denominator with full precision, following the selected rounding direction.
         */
        function mulDiv(uint256 x, uint256 y, uint256 denominator, Rounding rounding) internal pure returns (uint256) {
            return mulDiv(x, y, denominator) + SafeCast.toUint(unsignedRoundsUp(rounding) && mulmod(x, y, denominator) > 0);
        }
        /**
         * @dev Calculate the modular multiplicative inverse of a number in Z/nZ.
         *
         * If n is a prime, then Z/nZ is a field. In that case all elements are inversible, except 0.
         * If n is not a prime, then Z/nZ is not a field, and some elements might not be inversible.
         *
         * If the input value is not inversible, 0 is returned.
         *
         * NOTE: If you know for sure that n is (big) a prime, it may be cheaper to use Fermat's little theorem and get the
         * inverse using `Math.modExp(a, n - 2, n)`. See {invModPrime}.
         */
        function invMod(uint256 a, uint256 n) internal pure returns (uint256) {
            unchecked {
                if (n == 0) return 0;
                // The inverse modulo is calculated using the Extended Euclidean Algorithm (iterative version)
                // Used to compute integers x and y such that: ax + ny = gcd(a, n).
                // When the gcd is 1, then the inverse of a modulo n exists and it's x.
                // ax + ny = 1
                // ax = 1 + (-y)n
                // ax ≡ 1 (mod n) # x is the inverse of a modulo n
                // If the remainder is 0 the gcd is n right away.
                uint256 remainder = a % n;
                uint256 gcd = n;
                // Therefore the initial coefficients are:
                // ax + ny = gcd(a, n) = n
                // 0a + 1n = n
                int256 x = 0;
                int256 y = 1;
                while (remainder != 0) {
                    uint256 quotient = gcd / remainder;
                    (gcd, remainder) = (
                        // The old remainder is the next gcd to try.
                        remainder,
                        // Compute the next remainder.
                        // Can't overflow given that (a % gcd) * (gcd // (a % gcd)) <= gcd
                        // where gcd is at most n (capped to type(uint256).max)
                        gcd - remainder * quotient
                    );
                    (x, y) = (
                        // Increment the coefficient of a.
                        y,
                        // Decrement the coefficient of n.
                        // Can overflow, but the result is casted to uint256 so that the
                        // next value of y is "wrapped around" to a value between 0 and n - 1.
                        x - y * int256(quotient)
                    );
                }
                if (gcd != 1) return 0; // No inverse exists.
                return ternary(x < 0, n - uint256(-x), uint256(x)); // Wrap the result if it's negative.
            }
        }
        /**
         * @dev Variant of {invMod}. More efficient, but only works if `p` is known to be a prime greater than `2`.
         *
         * From https://en.wikipedia.org/wiki/Fermat%27s_little_theorem[Fermat's little theorem], we know that if p is
         * prime, then `a**(p-1) ≡ 1 mod p`. As a consequence, we have `a * a**(p-2) ≡ 1 mod p`, which means that
         * `a**(p-2)` is the modular multiplicative inverse of a in Fp.
         *
         * NOTE: this function does NOT check that `p` is a prime greater than `2`.
         */
        function invModPrime(uint256 a, uint256 p) internal view returns (uint256) {
            unchecked {
                return Math.modExp(a, p - 2, p);
            }
        }
        /**
         * @dev Returns the modular exponentiation of the specified base, exponent and modulus (b ** e % m)
         *
         * Requirements:
         * - modulus can't be zero
         * - underlying staticcall to precompile must succeed
         *
         * IMPORTANT: The result is only valid if the underlying call succeeds. When using this function, make
         * sure the chain you're using it on supports the precompiled contract for modular exponentiation
         * at address 0x05 as specified in https://eips.ethereum.org/EIPS/eip-198[EIP-198]. Otherwise,
         * the underlying function will succeed given the lack of a revert, but the result may be incorrectly
         * interpreted as 0.
         */
        function modExp(uint256 b, uint256 e, uint256 m) internal view returns (uint256) {
            (bool success, uint256 result) = tryModExp(b, e, m);
            if (!success) {
                Panic.panic(Panic.DIVISION_BY_ZERO);
            }
            return result;
        }
        /**
         * @dev Returns the modular exponentiation of the specified base, exponent and modulus (b ** e % m).
         * It includes a success flag indicating if the operation succeeded. Operation will be marked as failed if trying
         * to operate modulo 0 or if the underlying precompile reverted.
         *
         * IMPORTANT: The result is only valid if the success flag is true. When using this function, make sure the chain
         * you're using it on supports the precompiled contract for modular exponentiation at address 0x05 as specified in
         * https://eips.ethereum.org/EIPS/eip-198[EIP-198]. Otherwise, the underlying function will succeed given the lack
         * of a revert, but the result may be incorrectly interpreted as 0.
         */
        function tryModExp(uint256 b, uint256 e, uint256 m) internal view returns (bool success, uint256 result) {
            if (m == 0) return (false, 0);
            assembly ("memory-safe") {
                let ptr := mload(0x40)
                // | Offset    | Content    | Content (Hex)                                                      |
                // |-----------|------------|--------------------------------------------------------------------|
                // | 0x00:0x1f | size of b  | 0x0000000000000000000000000000000000000000000000000000000000000020 |
                // | 0x20:0x3f | size of e  | 0x0000000000000000000000000000000000000000000000000000000000000020 |
                // | 0x40:0x5f | size of m  | 0x0000000000000000000000000000000000000000000000000000000000000020 |
                // | 0x60:0x7f | value of b | 0x<.............................................................b> |
                // | 0x80:0x9f | value of e | 0x<.............................................................e> |
                // | 0xa0:0xbf | value of m | 0x<.............................................................m> |
                mstore(ptr, 0x20)
                mstore(add(ptr, 0x20), 0x20)
                mstore(add(ptr, 0x40), 0x20)
                mstore(add(ptr, 0x60), b)
                mstore(add(ptr, 0x80), e)
                mstore(add(ptr, 0xa0), m)
                // Given the result < m, it's guaranteed to fit in 32 bytes,
                // so we can use the memory scratch space located at offset 0.
                success := staticcall(gas(), 0x05, ptr, 0xc0, 0x00, 0x20)
                result := mload(0x00)
            }
        }
        /**
         * @dev Variant of {modExp} that supports inputs of arbitrary length.
         */
        function modExp(bytes memory b, bytes memory e, bytes memory m) internal view returns (bytes memory) {
            (bool success, bytes memory result) = tryModExp(b, e, m);
            if (!success) {
                Panic.panic(Panic.DIVISION_BY_ZERO);
            }
            return result;
        }
        /**
         * @dev Variant of {tryModExp} that supports inputs of arbitrary length.
         */
        function tryModExp(
            bytes memory b,
            bytes memory e,
            bytes memory m
        ) internal view returns (bool success, bytes memory result) {
            if (_zeroBytes(m)) return (false, new bytes(0));
            uint256 mLen = m.length;
            // Encode call args in result and move the free memory pointer
            result = abi.encodePacked(b.length, e.length, mLen, b, e, m);
            assembly ("memory-safe") {
                let dataPtr := add(result, 0x20)
                // Write result on top of args to avoid allocating extra memory.
                success := staticcall(gas(), 0x05, dataPtr, mload(result), dataPtr, mLen)
                // Overwrite the length.
                // result.length > returndatasize() is guaranteed because returndatasize() == m.length
                mstore(result, mLen)
                // Set the memory pointer after the returned data.
                mstore(0x40, add(dataPtr, mLen))
            }
        }
        /**
         * @dev Returns whether the provided byte array is zero.
         */
        function _zeroBytes(bytes memory byteArray) private pure returns (bool) {
            for (uint256 i = 0; i < byteArray.length; ++i) {
                if (byteArray[i] != 0) {
                    return false;
                }
            }
            return true;
        }
        /**
         * @dev Returns the square root of a number. If the number is not a perfect square, the value is rounded
         * towards zero.
         *
         * This method is based on Newton's method for computing square roots; the algorithm is restricted to only
         * using integer operations.
         */
        function sqrt(uint256 a) internal pure returns (uint256) {
            unchecked {
                // Take care of easy edge cases when a == 0 or a == 1
                if (a <= 1) {
                    return a;
                }
                // In this function, we use Newton's method to get a root of `f(x) := x² - a`. It involves building a
                // sequence x_n that converges toward sqrt(a). For each iteration x_n, we also define the error between
                // the current value as `ε_n = | x_n - sqrt(a) |`.
                //
                // For our first estimation, we consider `e` the smallest power of 2 which is bigger than the square root
                // of the target. (i.e. `2**(e-1) ≤ sqrt(a) < 2**e`). We know that `e ≤ 128` because `(2¹²⁸)² = 2²⁵⁶` is
                // bigger than any uint256.
                //
                // By noticing that
                // `2**(e-1) ≤ sqrt(a) < 2**e → (2**(e-1))² ≤ a < (2**e)² → 2**(2*e-2) ≤ a < 2**(2*e)`
                // we can deduce that `e - 1` is `log2(a) / 2`. We can thus compute `x_n = 2**(e-1)` using a method similar
                // to the msb function.
                uint256 aa = a;
                uint256 xn = 1;
                if (aa >= (1 << 128)) {
                    aa >>= 128;
                    xn <<= 64;
                }
                if (aa >= (1 << 64)) {
                    aa >>= 64;
                    xn <<= 32;
                }
                if (aa >= (1 << 32)) {
                    aa >>= 32;
                    xn <<= 16;
                }
                if (aa >= (1 << 16)) {
                    aa >>= 16;
                    xn <<= 8;
                }
                if (aa >= (1 << 8)) {
                    aa >>= 8;
                    xn <<= 4;
                }
                if (aa >= (1 << 4)) {
                    aa >>= 4;
                    xn <<= 2;
                }
                if (aa >= (1 << 2)) {
                    xn <<= 1;
                }
                // We now have x_n such that `x_n = 2**(e-1) ≤ sqrt(a) < 2**e = 2 * x_n`. This implies ε_n ≤ 2**(e-1).
                //
                // We can refine our estimation by noticing that the middle of that interval minimizes the error.
                // If we move x_n to equal 2**(e-1) + 2**(e-2), then we reduce the error to ε_n ≤ 2**(e-2).
                // This is going to be our x_0 (and ε_0)
                xn = (3 * xn) >> 1; // ε_0 := | x_0 - sqrt(a) | ≤ 2**(e-2)
                // From here, Newton's method give us:
                // x_{n+1} = (x_n + a / x_n) / 2
                //
                // One should note that:
                // x_{n+1}² - a = ((x_n + a / x_n) / 2)² - a
                //              = ((x_n² + a) / (2 * x_n))² - a
                //              = (x_n⁴ + 2 * a * x_n² + a²) / (4 * x_n²) - a
                //              = (x_n⁴ + 2 * a * x_n² + a² - 4 * a * x_n²) / (4 * x_n²)
                //              = (x_n⁴ - 2 * a * x_n² + a²) / (4 * x_n²)
                //              = (x_n² - a)² / (2 * x_n)²
                //              = ((x_n² - a) / (2 * x_n))²
                //              ≥ 0
                // Which proves that for all n ≥ 1, sqrt(a) ≤ x_n
                //
                // This gives us the proof of quadratic convergence of the sequence:
                // ε_{n+1} = | x_{n+1} - sqrt(a) |
                //         = | (x_n + a / x_n) / 2 - sqrt(a) |
                //         = | (x_n² + a - 2*x_n*sqrt(a)) / (2 * x_n) |
                //         = | (x_n - sqrt(a))² / (2 * x_n) |
                //         = | ε_n² / (2 * x_n) |
                //         = ε_n² / | (2 * x_n) |
                //
                // For the first iteration, we have a special case where x_0 is known:
                // ε_1 = ε_0² / | (2 * x_0) |
                //     ≤ (2**(e-2))² / (2 * (2**(e-1) + 2**(e-2)))
                //     ≤ 2**(2*e-4) / (3 * 2**(e-1))
                //     ≤ 2**(e-3) / 3
                //     ≤ 2**(e-3-log2(3))
                //     ≤ 2**(e-4.5)
                //
                // For the following iterations, we use the fact that, 2**(e-1) ≤ sqrt(a) ≤ x_n:
                // ε_{n+1} = ε_n² / | (2 * x_n) |
                //         ≤ (2**(e-k))² / (2 * 2**(e-1))
                //         ≤ 2**(2*e-2*k) / 2**e
                //         ≤ 2**(e-2*k)
                xn = (xn + a / xn) >> 1; // ε_1 := | x_1 - sqrt(a) | ≤ 2**(e-4.5)  -- special case, see above
                xn = (xn + a / xn) >> 1; // ε_2 := | x_2 - sqrt(a) | ≤ 2**(e-9)    -- general case with k = 4.5
                xn = (xn + a / xn) >> 1; // ε_3 := | x_3 - sqrt(a) | ≤ 2**(e-18)   -- general case with k = 9
                xn = (xn + a / xn) >> 1; // ε_4 := | x_4 - sqrt(a) | ≤ 2**(e-36)   -- general case with k = 18
                xn = (xn + a / xn) >> 1; // ε_5 := | x_5 - sqrt(a) | ≤ 2**(e-72)   -- general case with k = 36
                xn = (xn + a / xn) >> 1; // ε_6 := | x_6 - sqrt(a) | ≤ 2**(e-144)  -- general case with k = 72
                // Because e ≤ 128 (as discussed during the first estimation phase), we know have reached a precision
                // ε_6 ≤ 2**(e-144) < 1. Given we're operating on integers, then we can ensure that xn is now either
                // sqrt(a) or sqrt(a) + 1.
                return xn - SafeCast.toUint(xn > a / xn);
            }
        }
        /**
         * @dev Calculates sqrt(a), following the selected rounding direction.
         */
        function sqrt(uint256 a, Rounding rounding) internal pure returns (uint256) {
            unchecked {
                uint256 result = sqrt(a);
                return result + SafeCast.toUint(unsignedRoundsUp(rounding) && result * result < a);
            }
        }
        /**
         * @dev Return the log in base 2 of a positive value rounded towards zero.
         * Returns 0 if given 0.
         */
        function log2(uint256 value) internal pure returns (uint256) {
            uint256 result = 0;
            uint256 exp;
            unchecked {
                exp = 128 * SafeCast.toUint(value > (1 << 128) - 1);
                value >>= exp;
                result += exp;
                exp = 64 * SafeCast.toUint(value > (1 << 64) - 1);
                value >>= exp;
                result += exp;
                exp = 32 * SafeCast.toUint(value > (1 << 32) - 1);
                value >>= exp;
                result += exp;
                exp = 16 * SafeCast.toUint(value > (1 << 16) - 1);
                value >>= exp;
                result += exp;
                exp = 8 * SafeCast.toUint(value > (1 << 8) - 1);
                value >>= exp;
                result += exp;
                exp = 4 * SafeCast.toUint(value > (1 << 4) - 1);
                value >>= exp;
                result += exp;
                exp = 2 * SafeCast.toUint(value > (1 << 2) - 1);
                value >>= exp;
                result += exp;
                result += SafeCast.toUint(value > 1);
            }
            return result;
        }
        /**
         * @dev Return the log in base 2, following the selected rounding direction, of a positive value.
         * Returns 0 if given 0.
         */
        function log2(uint256 value, Rounding rounding) internal pure returns (uint256) {
            unchecked {
                uint256 result = log2(value);
                return result + SafeCast.toUint(unsignedRoundsUp(rounding) && 1 << result < value);
            }
        }
        /**
         * @dev Return the log in base 10 of a positive value rounded towards zero.
         * Returns 0 if given 0.
         */
        function log10(uint256 value) internal pure returns (uint256) {
            uint256 result = 0;
            unchecked {
                if (value >= 10 ** 64) {
                    value /= 10 ** 64;
                    result += 64;
                }
                if (value >= 10 ** 32) {
                    value /= 10 ** 32;
                    result += 32;
                }
                if (value >= 10 ** 16) {
                    value /= 10 ** 16;
                    result += 16;
                }
                if (value >= 10 ** 8) {
                    value /= 10 ** 8;
                    result += 8;
                }
                if (value >= 10 ** 4) {
                    value /= 10 ** 4;
                    result += 4;
                }
                if (value >= 10 ** 2) {
                    value /= 10 ** 2;
                    result += 2;
                }
                if (value >= 10 ** 1) {
                    result += 1;
                }
            }
            return result;
        }
        /**
         * @dev Return the log in base 10, following the selected rounding direction, of a positive value.
         * Returns 0 if given 0.
         */
        function log10(uint256 value, Rounding rounding) internal pure returns (uint256) {
            unchecked {
                uint256 result = log10(value);
                return result + SafeCast.toUint(unsignedRoundsUp(rounding) && 10 ** result < value);
            }
        }
        /**
         * @dev Return the log in base 256 of a positive value rounded towards zero.
         * Returns 0 if given 0.
         *
         * Adding one to the result gives the number of pairs of hex symbols needed to represent `value` as a hex string.
         */
        function log256(uint256 value) internal pure returns (uint256) {
            uint256 result = 0;
            uint256 isGt;
            unchecked {
                isGt = SafeCast.toUint(value > (1 << 128) - 1);
                value >>= isGt * 128;
                result += isGt * 16;
                isGt = SafeCast.toUint(value > (1 << 64) - 1);
                value >>= isGt * 64;
                result += isGt * 8;
                isGt = SafeCast.toUint(value > (1 << 32) - 1);
                value >>= isGt * 32;
                result += isGt * 4;
                isGt = SafeCast.toUint(value > (1 << 16) - 1);
                value >>= isGt * 16;
                result += isGt * 2;
                result += SafeCast.toUint(value > (1 << 8) - 1);
            }
            return result;
        }
        /**
         * @dev Return the log in base 256, following the selected rounding direction, of a positive value.
         * Returns 0 if given 0.
         */
        function log256(uint256 value, Rounding rounding) internal pure returns (uint256) {
            unchecked {
                uint256 result = log256(value);
                return result + SafeCast.toUint(unsignedRoundsUp(rounding) && 1 << (result << 3) < value);
            }
        }
        /**
         * @dev Returns whether a provided rounding mode is considered rounding up for unsigned integers.
         */
        function unsignedRoundsUp(Rounding rounding) internal pure returns (bool) {
            return uint8(rounding) % 2 == 1;
        }
    }
    // SPDX-License-Identifier: MIT
    // OpenZeppelin Contracts (last updated v5.0.0) (interfaces/IERC5313.sol)
    pragma solidity ^0.8.20;
    /**
     * @dev Interface for the Light Contract Ownership Standard.
     *
     * A standardized minimal interface required to identify an account that controls a contract
     */
    interface IERC5313 {
        /**
         * @dev Gets the address of the owner.
         */
        function owner() external view returns (address);
    }
    // SPDX-License-Identifier: MIT
    // OpenZeppelin Contracts (last updated v5.1.0) (token/ERC20/extensions/ERC20Permit.sol)
    pragma solidity ^0.8.20;
    import {IERC20Permit} from "@openzeppelin/contracts/token/ERC20/extensions/IERC20Permit.sol";
    import {ERC20Upgradeable} from "../ERC20Upgradeable.sol";
    import {ECDSA} from "@openzeppelin/contracts/utils/cryptography/ECDSA.sol";
    import {EIP712Upgradeable} from "../../../utils/cryptography/EIP712Upgradeable.sol";
    import {NoncesUpgradeable} from "../../../utils/NoncesUpgradeable.sol";
    import {Initializable} from "../../../proxy/utils/Initializable.sol";
    /**
     * @dev Implementation of the ERC-20 Permit extension allowing approvals to be made via signatures, as defined in
     * https://eips.ethereum.org/EIPS/eip-2612[ERC-2612].
     *
     * Adds the {permit} method, which can be used to change an account's ERC-20 allowance (see {IERC20-allowance}) by
     * presenting a message signed by the account. By not relying on `{IERC20-approve}`, the token holder account doesn't
     * need to send a transaction, and thus is not required to hold Ether at all.
     */
    abstract contract ERC20PermitUpgradeable is Initializable, ERC20Upgradeable, IERC20Permit, EIP712Upgradeable, NoncesUpgradeable {
        bytes32 private constant PERMIT_TYPEHASH =
            keccak256("Permit(address owner,address spender,uint256 value,uint256 nonce,uint256 deadline)");
        /**
         * @dev Permit deadline has expired.
         */
        error ERC2612ExpiredSignature(uint256 deadline);
        /**
         * @dev Mismatched signature.
         */
        error ERC2612InvalidSigner(address signer, address owner);
        /**
         * @dev Initializes the {EIP712} domain separator using the `name` parameter, and setting `version` to `"1"`.
         *
         * It's a good idea to use the same `name` that is defined as the ERC-20 token name.
         */
        function __ERC20Permit_init(string memory name) internal onlyInitializing {
            __EIP712_init_unchained(name, "1");
        }
        function __ERC20Permit_init_unchained(string memory) internal onlyInitializing {}
        /**
         * @inheritdoc IERC20Permit
         */
        function permit(
            address owner,
            address spender,
            uint256 value,
            uint256 deadline,
            uint8 v,
            bytes32 r,
            bytes32 s
        ) public virtual {
            if (block.timestamp > deadline) {
                revert ERC2612ExpiredSignature(deadline);
            }
            bytes32 structHash = keccak256(abi.encode(PERMIT_TYPEHASH, owner, spender, value, _useNonce(owner), deadline));
            bytes32 hash = _hashTypedDataV4(structHash);
            address signer = ECDSA.recover(hash, v, r, s);
            if (signer != owner) {
                revert ERC2612InvalidSigner(signer, owner);
            }
            _approve(owner, spender, value);
        }
        /**
         * @inheritdoc IERC20Permit
         */
        function nonces(address owner) public view virtual override(IERC20Permit, NoncesUpgradeable) returns (uint256) {
            return super.nonces(owner);
        }
        /**
         * @inheritdoc IERC20Permit
         */
        // solhint-disable-next-line func-name-mixedcase
        function DOMAIN_SEPARATOR() external view virtual returns (bytes32) {
            return _domainSeparatorV4();
        }
    }
    // SPDX-License-Identifier: MIT
    pragma solidity ^0.8.20;
    import {IOFT, OFTCoreUpgradeable} from "./OFTCoreUpgradeable.sol";
    /**
     * @title OFT Contract
     * @dev OFT is an ERC-20 token that extends the functionality of the OFTCore contract.
     */
    abstract contract OFTCustomUpgradeable is OFTCoreUpgradeable {
        /**
         * @dev Constructor for the OFT contract.
         * @param _lzEndpoint The LayerZero endpoint address.
         */
        constructor(uint8 decimals, address _lzEndpoint) OFTCoreUpgradeable(decimals, _lzEndpoint) {}
        /**
         * @dev Initializes the OFT with the provided name, symbol, and delegate.
         * @param _delegate The delegate capable of making OApp configurations inside of the endpoint.
         *
         * @dev The delegate typically should be set as the owner of the contract.
         * @dev Ownable is not initialized here on purpose. It should be initialized in the child contract to
         * accommodate the different version of Ownable.
         */
        function __OFT_init(address _delegate) internal onlyInitializing {
            __OFTCore_init(_delegate);
        }
        function __OFT_init_unchained() internal onlyInitializing {}
        /**
         * @dev Retrieves the address of the underlying ERC20 implementation.
         * @return The address of the OFT token.
         *
         * @dev In the case of OFT, address(this) and erc20 are the same contract.
         */
        function token() public view returns (address) {
            return address(this);
        }
        /**
         * @notice Indicates whether the OFT contract requires approval of the 'token()' to send.
         * @return requiresApproval Needs approval of the underlying token implementation.
         *
         * @dev In the case of OFT where the contract IS the token, approval is NOT required.
         */
        function approvalRequired() external pure virtual returns (bool) {
            return false;
        }
        /**
         * @dev Burns tokens from the sender's specified balance.
         * @param _from The address to debit the tokens from.
         * @param _amountLD The amount of tokens to send in local decimals.
         * @param _minAmountLD The minimum amount to send in local decimals.
         * @param _dstEid The destination chain ID.
         * @return amountSentLD The amount sent in local decimals.
         * @return amountReceivedLD The amount received in local decimals on the remote.
         */
        function _debit(address _from, uint256 _amountLD, uint256 _minAmountLD, uint32 _dstEid)
            internal
            virtual
            override
            returns (uint256 amountSentLD, uint256 amountReceivedLD)
        {
            (amountSentLD, amountReceivedLD) = _debitView(_amountLD, _minAmountLD, _dstEid);
            // @dev In NON-default OFT, amountSentLD could be 100, with a 10% fee, the amountReceivedLD amount is 90,
            // therefore amountSentLD CAN differ from amountReceivedLD.
            // @dev Default OFT burns on src.
            _oftBurn(_from, amountSentLD);
        }
        /**
         * @dev Credits tokens to the specified address.
         * @param _to The address to credit the tokens to.
         * @param _amountLD The amount of tokens to credit in local decimals.
         * @dev _srcEid The source chain ID.
         * @return amountReceivedLD The amount of tokens ACTUALLY received in local decimals.
         */
        function _credit(address _to, uint256 _amountLD, uint32 /*_srcEid*/ )
            internal
            virtual
            override
            returns (uint256 amountReceivedLD)
        {
            if (_to == address(0x0)) _to = address(0xdead); // _mint(...) does not support address(0x0)
            // @dev Default OFT mints on dst.
            _oftMint(_to, _amountLD);
            // @dev In the case of NON-default OFT, the _amountLD MIGHT not be == amountReceivedLD.
            return _amountLD;
        }
        /**
         * @dev Custom hook to call into token's burn function.
         * @param _from The address to debit the tokens from.
         * @param _amountLD The amount of tokens to send in local decimals.
         */
        function _oftBurn(address _from, uint256 _amountLD) internal virtual;
        /**
         * @dev Custom hook to call into token's mint function.
         * @param _to The address to credit the tokens to.
         * @param _amountLD The amount of tokens to credit in local decimals.
         */
        function _oftMint(address _to, uint256 _amountLD) internal virtual;
    }
    // SPDX-License-Identifier: MIT
    pragma solidity ^0.8.20;
    /**
     * @title OnlyLZAdmin
     * @dev Abstract contract that restricts access of functions to only the LayerZero admin.
     * @dev The contract implementer is responsible for deciding how that role is defined and managed.
     */
    abstract contract OnlyLZAdmin {
        /**
         * @dev Modifier to restrict access to only the LayerZero admin.
         */
        modifier onlyLZAdmin() virtual;
    }
    // SPDX-License-Identifier: MIT
    // OpenZeppelin Contracts (last updated v5.1.0) (utils/introspection/IERC165.sol)
    pragma solidity ^0.8.20;
    /**
     * @dev Interface of the ERC-165 standard, as defined in the
     * https://eips.ethereum.org/EIPS/eip-165[ERC].
     *
     * Implementers can declare support of contract interfaces, which can then be
     * queried by others ({ERC165Checker}).
     *
     * For an implementation, see {ERC165}.
     */
    interface IERC165 {
        /**
         * @dev Returns true if this contract implements the interface defined by
         * `interfaceId`. See the corresponding
         * https://eips.ethereum.org/EIPS/eip-165#how-interfaces-are-identified[ERC section]
         * to learn more about how these ids are created.
         *
         * This function call must use less than 30 000 gas.
         */
        function supportsInterface(bytes4 interfaceId) external view returns (bool);
    }
    // SPDX-License-Identifier: MIT
    // OpenZeppelin Contracts (last updated v5.0.1) (utils/Context.sol)
    pragma solidity ^0.8.20;
    import {Initializable} from "../proxy/utils/Initializable.sol";
    /**
     * @dev Provides information about the current execution context, including the
     * sender of the transaction and its data. While these are generally available
     * via msg.sender and msg.data, they should not be accessed in such a direct
     * manner, since when dealing with meta-transactions the account sending and
     * paying for execution may not be the actual sender (as far as an application
     * is concerned).
     *
     * This contract is only required for intermediate, library-like contracts.
     */
    abstract contract ContextUpgradeable is Initializable {
        function __Context_init() internal onlyInitializing {
        }
        function __Context_init_unchained() internal onlyInitializing {
        }
        function _msgSender() internal view virtual returns (address) {
            return msg.sender;
        }
        function _msgData() internal view virtual returns (bytes calldata) {
            return msg.data;
        }
        function _contextSuffixLength() internal view virtual returns (uint256) {
            return 0;
        }
    }
    // SPDX-License-Identifier: MIT
    // OpenZeppelin Contracts (last updated v5.1.0) (utils/introspection/ERC165.sol)
    pragma solidity ^0.8.20;
    import {IERC165} from "@openzeppelin/contracts/utils/introspection/IERC165.sol";
    import {Initializable} from "../../proxy/utils/Initializable.sol";
    /**
     * @dev Implementation of the {IERC165} interface.
     *
     * Contracts that want to implement ERC-165 should inherit from this contract and override {supportsInterface} to check
     * for the additional interface id that will be supported. For example:
     *
     * ```solidity
     * function supportsInterface(bytes4 interfaceId) public view virtual override returns (bool) {
     *     return interfaceId == type(MyInterface).interfaceId || super.supportsInterface(interfaceId);
     * }
     * ```
     */
    abstract contract ERC165Upgradeable is Initializable, IERC165 {
        function __ERC165_init() internal onlyInitializing {
        }
        function __ERC165_init_unchained() internal onlyInitializing {
        }
        /**
         * @dev See {IERC165-supportsInterface}.
         */
        function supportsInterface(bytes4 interfaceId) public view virtual returns (bool) {
            return interfaceId == type(IERC165).interfaceId;
        }
    }
    // SPDX-License-Identifier: MIT
    // OpenZeppelin Contracts (last updated v5.1.0) (utils/Panic.sol)
    pragma solidity ^0.8.20;
    /**
     * @dev Helper library for emitting standardized panic codes.
     *
     * ```solidity
     * contract Example {
     *      using Panic for uint256;
     *
     *      // Use any of the declared internal constants
     *      function foo() { Panic.GENERIC.panic(); }
     *
     *      // Alternatively
     *      function foo() { Panic.panic(Panic.GENERIC); }
     * }
     * ```
     *
     * Follows the list from https://github.com/ethereum/solidity/blob/v0.8.24/libsolutil/ErrorCodes.h[libsolutil].
     *
     * _Available since v5.1._
     */
    // slither-disable-next-line unused-state
    library Panic {
        /// @dev generic / unspecified error
        uint256 internal constant GENERIC = 0x00;
        /// @dev used by the assert() builtin
        uint256 internal constant ASSERT = 0x01;
        /// @dev arithmetic underflow or overflow
        uint256 internal constant UNDER_OVERFLOW = 0x11;
        /// @dev division or modulo by zero
        uint256 internal constant DIVISION_BY_ZERO = 0x12;
        /// @dev enum conversion error
        uint256 internal constant ENUM_CONVERSION_ERROR = 0x21;
        /// @dev invalid encoding in storage
        uint256 internal constant STORAGE_ENCODING_ERROR = 0x22;
        /// @dev empty array pop
        uint256 internal constant EMPTY_ARRAY_POP = 0x31;
        /// @dev array out of bounds access
        uint256 internal constant ARRAY_OUT_OF_BOUNDS = 0x32;
        /// @dev resource error (too large allocation or too large array)
        uint256 internal constant RESOURCE_ERROR = 0x41;
        /// @dev calling invalid internal function
        uint256 internal constant INVALID_INTERNAL_FUNCTION = 0x51;
        /// @dev Reverts with a panic code. Recommended to use with
        /// the internal constants with predefined codes.
        function panic(uint256 code) internal pure {
            assembly ("memory-safe") {
                mstore(0x00, 0x4e487b71)
                mstore(0x20, code)
                revert(0x1c, 0x24)
            }
        }
    }
    // SPDX-License-Identifier: MIT
    // OpenZeppelin Contracts (last updated v5.2.0) (token/ERC20/ERC20.sol)
    pragma solidity ^0.8.20;
    import {IERC20} from "@openzeppelin/contracts/token/ERC20/IERC20.sol";
    import {IERC20Metadata} from "@openzeppelin/contracts/token/ERC20/extensions/IERC20Metadata.sol";
    import {ContextUpgradeable} from "../../utils/ContextUpgradeable.sol";
    import {IERC20Errors} from "@openzeppelin/contracts/interfaces/draft-IERC6093.sol";
    import {Initializable} from "../../proxy/utils/Initializable.sol";
    /**
     * @dev Implementation of the {IERC20} interface.
     *
     * This implementation is agnostic to the way tokens are created. This means
     * that a supply mechanism has to be added in a derived contract using {_mint}.
     *
     * TIP: For a detailed writeup see our guide
     * https://forum.openzeppelin.com/t/how-to-implement-erc20-supply-mechanisms/226[How
     * to implement supply mechanisms].
     *
     * The default value of {decimals} is 18. To change this, you should override
     * this function so it returns a different value.
     *
     * We have followed general OpenZeppelin Contracts guidelines: functions revert
     * instead returning `false` on failure. This behavior is nonetheless
     * conventional and does not conflict with the expectations of ERC-20
     * applications.
     */
    abstract contract ERC20Upgradeable is Initializable, ContextUpgradeable, IERC20, IERC20Metadata, IERC20Errors {
        /// @custom:storage-location erc7201:openzeppelin.storage.ERC20
        struct ERC20Storage {
            mapping(address account => uint256) _balances;
            mapping(address account => mapping(address spender => uint256)) _allowances;
            uint256 _totalSupply;
            string _name;
            string _symbol;
        }
        // keccak256(abi.encode(uint256(keccak256("openzeppelin.storage.ERC20")) - 1)) & ~bytes32(uint256(0xff))
        bytes32 private constant ERC20StorageLocation = 0x52c63247e1f47db19d5ce0460030c497f067ca4cebf71ba98eeadabe20bace00;
        function _getERC20Storage() private pure returns (ERC20Storage storage $) {
            assembly {
                $.slot := ERC20StorageLocation
            }
        }
        /**
         * @dev Sets the values for {name} and {symbol}.
         *
         * All two of these values are immutable: they can only be set once during
         * construction.
         */
        function __ERC20_init(string memory name_, string memory symbol_) internal onlyInitializing {
            __ERC20_init_unchained(name_, symbol_);
        }
        function __ERC20_init_unchained(string memory name_, string memory symbol_) internal onlyInitializing {
            ERC20Storage storage $ = _getERC20Storage();
            $._name = name_;
            $._symbol = symbol_;
        }
        /**
         * @dev Returns the name of the token.
         */
        function name() public view virtual returns (string memory) {
            ERC20Storage storage $ = _getERC20Storage();
            return $._name;
        }
        /**
         * @dev Returns the symbol of the token, usually a shorter version of the
         * name.
         */
        function symbol() public view virtual returns (string memory) {
            ERC20Storage storage $ = _getERC20Storage();
            return $._symbol;
        }
        /**
         * @dev Returns the number of decimals used to get its user representation.
         * For example, if `decimals` equals `2`, a balance of `505` tokens should
         * be displayed to a user as `5.05` (`505 / 10 ** 2`).
         *
         * Tokens usually opt for a value of 18, imitating the relationship between
         * Ether and Wei. This is the default value returned by this function, unless
         * it's overridden.
         *
         * NOTE: This information is only used for _display_ purposes: it in
         * no way affects any of the arithmetic of the contract, including
         * {IERC20-balanceOf} and {IERC20-transfer}.
         */
        function decimals() public view virtual returns (uint8) {
            return 18;
        }
        /**
         * @dev See {IERC20-totalSupply}.
         */
        function totalSupply() public view virtual returns (uint256) {
            ERC20Storage storage $ = _getERC20Storage();
            return $._totalSupply;
        }
        /**
         * @dev See {IERC20-balanceOf}.
         */
        function balanceOf(address account) public view virtual returns (uint256) {
            ERC20Storage storage $ = _getERC20Storage();
            return $._balances[account];
        }
        /**
         * @dev See {IERC20-transfer}.
         *
         * Requirements:
         *
         * - `to` cannot be the zero address.
         * - the caller must have a balance of at least `value`.
         */
        function transfer(address to, uint256 value) public virtual returns (bool) {
            address owner = _msgSender();
            _transfer(owner, to, value);
            return true;
        }
        /**
         * @dev See {IERC20-allowance}.
         */
        function allowance(address owner, address spender) public view virtual returns (uint256) {
            ERC20Storage storage $ = _getERC20Storage();
            return $._allowances[owner][spender];
        }
        /**
         * @dev See {IERC20-approve}.
         *
         * NOTE: If `value` is the maximum `uint256`, the allowance is not updated on
         * `transferFrom`. This is semantically equivalent to an infinite approval.
         *
         * Requirements:
         *
         * - `spender` cannot be the zero address.
         */
        function approve(address spender, uint256 value) public virtual returns (bool) {
            address owner = _msgSender();
            _approve(owner, spender, value);
            return true;
        }
        /**
         * @dev See {IERC20-transferFrom}.
         *
         * Skips emitting an {Approval} event indicating an allowance update. This is not
         * required by the ERC. See {xref-ERC20-_approve-address-address-uint256-bool-}[_approve].
         *
         * NOTE: Does not update the allowance if the current allowance
         * is the maximum `uint256`.
         *
         * Requirements:
         *
         * - `from` and `to` cannot be the zero address.
         * - `from` must have a balance of at least `value`.
         * - the caller must have allowance for ``from``'s tokens of at least
         * `value`.
         */
        function transferFrom(address from, address to, uint256 value) public virtual returns (bool) {
            address spender = _msgSender();
            _spendAllowance(from, spender, value);
            _transfer(from, to, value);
            return true;
        }
        /**
         * @dev Moves a `value` amount of tokens from `from` to `to`.
         *
         * This internal function is equivalent to {transfer}, and can be used to
         * e.g. implement automatic token fees, slashing mechanisms, etc.
         *
         * Emits a {Transfer} event.
         *
         * NOTE: This function is not virtual, {_update} should be overridden instead.
         */
        function _transfer(address from, address to, uint256 value) internal {
            if (from == address(0)) {
                revert ERC20InvalidSender(address(0));
            }
            if (to == address(0)) {
                revert ERC20InvalidReceiver(address(0));
            }
            _update(from, to, value);
        }
        /**
         * @dev Transfers a `value` amount of tokens from `from` to `to`, or alternatively mints (or burns) if `from`
         * (or `to`) is the zero address. All customizations to transfers, mints, and burns should be done by overriding
         * this function.
         *
         * Emits a {Transfer} event.
         */
        function _update(address from, address to, uint256 value) internal virtual {
            ERC20Storage storage $ = _getERC20Storage();
            if (from == address(0)) {
                // Overflow check required: The rest of the code assumes that totalSupply never overflows
                $._totalSupply += value;
            } else {
                uint256 fromBalance = $._balances[from];
                if (fromBalance < value) {
                    revert ERC20InsufficientBalance(from, fromBalance, value);
                }
                unchecked {
                    // Overflow not possible: value <= fromBalance <= totalSupply.
                    $._balances[from] = fromBalance - value;
                }
            }
            if (to == address(0)) {
                unchecked {
                    // Overflow not possible: value <= totalSupply or value <= fromBalance <= totalSupply.
                    $._totalSupply -= value;
                }
            } else {
                unchecked {
                    // Overflow not possible: balance + value is at most totalSupply, which we know fits into a uint256.
                    $._balances[to] += value;
                }
            }
            emit Transfer(from, to, value);
        }
        /**
         * @dev Creates a `value` amount of tokens and assigns them to `account`, by transferring it from address(0).
         * Relies on the `_update` mechanism
         *
         * Emits a {Transfer} event with `from` set to the zero address.
         *
         * NOTE: This function is not virtual, {_update} should be overridden instead.
         */
        function _mint(address account, uint256 value) internal {
            if (account == address(0)) {
                revert ERC20InvalidReceiver(address(0));
            }
            _update(address(0), account, value);
        }
        /**
         * @dev Destroys a `value` amount of tokens from `account`, lowering the total supply.
         * Relies on the `_update` mechanism.
         *
         * Emits a {Transfer} event with `to` set to the zero address.
         *
         * NOTE: This function is not virtual, {_update} should be overridden instead
         */
        function _burn(address account, uint256 value) internal {
            if (account == address(0)) {
                revert ERC20InvalidSender(address(0));
            }
            _update(account, address(0), value);
        }
        /**
         * @dev Sets `value` as the allowance of `spender` over the `owner` s tokens.
         *
         * This internal function is equivalent to `approve`, and can be used to
         * e.g. set automatic allowances for certain subsystems, etc.
         *
         * Emits an {Approval} event.
         *
         * Requirements:
         *
         * - `owner` cannot be the zero address.
         * - `spender` cannot be the zero address.
         *
         * Overrides to this logic should be done to the variant with an additional `bool emitEvent` argument.
         */
        function _approve(address owner, address spender, uint256 value) internal {
            _approve(owner, spender, value, true);
        }
        /**
         * @dev Variant of {_approve} with an optional flag to enable or disable the {Approval} event.
         *
         * By default (when calling {_approve}) the flag is set to true. On the other hand, approval changes made by
         * `_spendAllowance` during the `transferFrom` operation set the flag to false. This saves gas by not emitting any
         * `Approval` event during `transferFrom` operations.
         *
         * Anyone who wishes to continue emitting `Approval` events on the`transferFrom` operation can force the flag to
         * true using the following override:
         *
         * ```solidity
         * function _approve(address owner, address spender, uint256 value, bool) internal virtual override {
         *     super._approve(owner, spender, value, true);
         * }
         * ```
         *
         * Requirements are the same as {_approve}.
         */
        function _approve(address owner, address spender, uint256 value, bool emitEvent) internal virtual {
            ERC20Storage storage $ = _getERC20Storage();
            if (owner == address(0)) {
                revert ERC20InvalidApprover(address(0));
            }
            if (spender == address(0)) {
                revert ERC20InvalidSpender(address(0));
            }
            $._allowances[owner][spender] = value;
            if (emitEvent) {
                emit Approval(owner, spender, value);
            }
        }
        /**
         * @dev Updates `owner` s allowance for `spender` based on spent `value`.
         *
         * Does not update the allowance value in case of infinite allowance.
         * Revert if not enough allowance is available.
         *
         * Does not emit an {Approval} event.
         */
        function _spendAllowance(address owner, address spender, uint256 value) internal virtual {
            uint256 currentAllowance = allowance(owner, spender);
            if (currentAllowance < type(uint256).max) {
                if (currentAllowance < value) {
                    revert ERC20InsufficientAllowance(spender, currentAllowance, value);
                }
                unchecked {
                    _approve(owner, spender, currentAllowance - value, false);
                }
            }
        }
    }
    // SPDX-License-Identifier: MIT
    // OpenZeppelin Contracts (last updated v5.1.0) (utils/cryptography/ECDSA.sol)
    pragma solidity ^0.8.20;
    /**
     * @dev Elliptic Curve Digital Signature Algorithm (ECDSA) operations.
     *
     * These functions can be used to verify that a message was signed by the holder
     * of the private keys of a given address.
     */
    library ECDSA {
        enum RecoverError {
            NoError,
            InvalidSignature,
            InvalidSignatureLength,
            InvalidSignatureS
        }
        /**
         * @dev The signature derives the `address(0)`.
         */
        error ECDSAInvalidSignature();
        /**
         * @dev The signature has an invalid length.
         */
        error ECDSAInvalidSignatureLength(uint256 length);
        /**
         * @dev The signature has an S value that is in the upper half order.
         */
        error ECDSAInvalidSignatureS(bytes32 s);
        /**
         * @dev Returns the address that signed a hashed message (`hash`) with `signature` or an error. This will not
         * return address(0) without also returning an error description. Errors are documented using an enum (error type)
         * and a bytes32 providing additional information about the error.
         *
         * If no error is returned, then the address can be used for verification purposes.
         *
         * The `ecrecover` EVM precompile allows for malleable (non-unique) signatures:
         * this function rejects them by requiring the `s` value to be in the lower
         * half order, and the `v` value to be either 27 or 28.
         *
         * IMPORTANT: `hash` _must_ be the result of a hash operation for the
         * verification to be secure: it is possible to craft signatures that
         * recover to arbitrary addresses for non-hashed data. A safe way to ensure
         * this is by receiving a hash of the original message (which may otherwise
         * be too long), and then calling {MessageHashUtils-toEthSignedMessageHash} on it.
         *
         * Documentation for signature generation:
         * - with https://web3js.readthedocs.io/en/v1.3.4/web3-eth-accounts.html#sign[Web3.js]
         * - with https://docs.ethers.io/v5/api/signer/#Signer-signMessage[ethers]
         */
        function tryRecover(
            bytes32 hash,
            bytes memory signature
        ) internal pure returns (address recovered, RecoverError err, bytes32 errArg) {
            if (signature.length == 65) {
                bytes32 r;
                bytes32 s;
                uint8 v;
                // ecrecover takes the signature parameters, and the only way to get them
                // currently is to use assembly.
                assembly ("memory-safe") {
                    r := mload(add(signature, 0x20))
                    s := mload(add(signature, 0x40))
                    v := byte(0, mload(add(signature, 0x60)))
                }
                return tryRecover(hash, v, r, s);
            } else {
                return (address(0), RecoverError.InvalidSignatureLength, bytes32(signature.length));
            }
        }
        /**
         * @dev Returns the address that signed a hashed message (`hash`) with
         * `signature`. This address can then be used for verification purposes.
         *
         * The `ecrecover` EVM precompile allows for malleable (non-unique) signatures:
         * this function rejects them by requiring the `s` value to be in the lower
         * half order, and the `v` value to be either 27 or 28.
         *
         * IMPORTANT: `hash` _must_ be the result of a hash operation for the
         * verification to be secure: it is possible to craft signatures that
         * recover to arbitrary addresses for non-hashed data. A safe way to ensure
         * this is by receiving a hash of the original message (which may otherwise
         * be too long), and then calling {MessageHashUtils-toEthSignedMessageHash} on it.
         */
        function recover(bytes32 hash, bytes memory signature) internal pure returns (address) {
            (address recovered, RecoverError error, bytes32 errorArg) = tryRecover(hash, signature);
            _throwError(error, errorArg);
            return recovered;
        }
        /**
         * @dev Overload of {ECDSA-tryRecover} that receives the `r` and `vs` short-signature fields separately.
         *
         * See https://eips.ethereum.org/EIPS/eip-2098[ERC-2098 short signatures]
         */
        function tryRecover(
            bytes32 hash,
            bytes32 r,
            bytes32 vs
        ) internal pure returns (address recovered, RecoverError err, bytes32 errArg) {
            unchecked {
                bytes32 s = vs & bytes32(0x7fffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff);
                // We do not check for an overflow here since the shift operation results in 0 or 1.
                uint8 v = uint8((uint256(vs) >> 255) + 27);
                return tryRecover(hash, v, r, s);
            }
        }
        /**
         * @dev Overload of {ECDSA-recover} that receives the `r and `vs` short-signature fields separately.
         */
        function recover(bytes32 hash, bytes32 r, bytes32 vs) internal pure returns (address) {
            (address recovered, RecoverError error, bytes32 errorArg) = tryRecover(hash, r, vs);
            _throwError(error, errorArg);
            return recovered;
        }
        /**
         * @dev Overload of {ECDSA-tryRecover} that receives the `v`,
         * `r` and `s` signature fields separately.
         */
        function tryRecover(
            bytes32 hash,
            uint8 v,
            bytes32 r,
            bytes32 s
        ) internal pure returns (address recovered, RecoverError err, bytes32 errArg) {
            // EIP-2 still allows signature malleability for ecrecover(). Remove this possibility and make the signature
            // unique. Appendix F in the Ethereum Yellow paper (https://ethereum.github.io/yellowpaper/paper.pdf), defines
            // the valid range for s in (301): 0 < s < secp256k1n ÷ 2 + 1, and for v in (302): v ∈ {27, 28}. Most
            // signatures from current libraries generate a unique signature with an s-value in the lower half order.
            //
            // If your library generates malleable signatures, such as s-values in the upper range, calculate a new s-value
            // with 0xFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFEBAAEDCE6AF48A03BBFD25E8CD0364141 - s1 and flip v from 27 to 28 or
            // vice versa. If your library also generates signatures with 0/1 for v instead 27/28, add 27 to v to accept
            // these malleable signatures as well.
            if (uint256(s) > 0x7FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF5D576E7357A4501DDFE92F46681B20A0) {
                return (address(0), RecoverError.InvalidSignatureS, s);
            }
            // If the signature is valid (and not malleable), return the signer address
            address signer = ecrecover(hash, v, r, s);
            if (signer == address(0)) {
                return (address(0), RecoverError.InvalidSignature, bytes32(0));
            }
            return (signer, RecoverError.NoError, bytes32(0));
        }
        /**
         * @dev Overload of {ECDSA-recover} that receives the `v`,
         * `r` and `s` signature fields separately.
         */
        function recover(bytes32 hash, uint8 v, bytes32 r, bytes32 s) internal pure returns (address) {
            (address recovered, RecoverError error, bytes32 errorArg) = tryRecover(hash, v, r, s);
            _throwError(error, errorArg);
            return recovered;
        }
        /**
         * @dev Optionally reverts with the corresponding custom error according to the `error` argument provided.
         */
        function _throwError(RecoverError error, bytes32 errorArg) private pure {
            if (error == RecoverError.NoError) {
                return; // no error: do nothing
            } else if (error == RecoverError.InvalidSignature) {
                revert ECDSAInvalidSignature();
            } else if (error == RecoverError.InvalidSignatureLength) {
                revert ECDSAInvalidSignatureLength(uint256(errorArg));
            } else if (error == RecoverError.InvalidSignatureS) {
                revert ECDSAInvalidSignatureS(errorArg);
            }
        }
    }
    // SPDX-License-Identifier: MIT
    // OpenZeppelin Contracts (last updated v5.1.0) (utils/cryptography/EIP712.sol)
    pragma solidity ^0.8.20;
    import {MessageHashUtils} from "@openzeppelin/contracts/utils/cryptography/MessageHashUtils.sol";
    import {IERC5267} from "@openzeppelin/contracts/interfaces/IERC5267.sol";
    import {Initializable} from "../../proxy/utils/Initializable.sol";
    /**
     * @dev https://eips.ethereum.org/EIPS/eip-712[EIP-712] is a standard for hashing and signing of typed structured data.
     *
     * The encoding scheme specified in the EIP requires a domain separator and a hash of the typed structured data, whose
     * encoding is very generic and therefore its implementation in Solidity is not feasible, thus this contract
     * does not implement the encoding itself. Protocols need to implement the type-specific encoding they need in order to
     * produce the hash of their typed data using a combination of `abi.encode` and `keccak256`.
     *
     * This contract implements the EIP-712 domain separator ({_domainSeparatorV4}) that is used as part of the encoding
     * scheme, and the final step of the encoding to obtain the message digest that is then signed via ECDSA
     * ({_hashTypedDataV4}).
     *
     * The implementation of the domain separator was designed to be as efficient as possible while still properly updating
     * the chain id to protect against replay attacks on an eventual fork of the chain.
     *
     * NOTE: This contract implements the version of the encoding known as "v4", as implemented by the JSON RPC method
     * https://docs.metamask.io/guide/signing-data.html[`eth_signTypedDataV4` in MetaMask].
     *
     * NOTE: In the upgradeable version of this contract, the cached values will correspond to the address, and the domain
     * separator of the implementation contract. This will cause the {_domainSeparatorV4} function to always rebuild the
     * separator from the immutable values, which is cheaper than accessing a cached version in cold storage.
     */
    abstract contract EIP712Upgradeable is Initializable, IERC5267 {
        bytes32 private constant TYPE_HASH =
            keccak256("EIP712Domain(string name,string version,uint256 chainId,address verifyingContract)");
        /// @custom:storage-location erc7201:openzeppelin.storage.EIP712
        struct EIP712Storage {
            /// @custom:oz-renamed-from _HASHED_NAME
            bytes32 _hashedName;
            /// @custom:oz-renamed-from _HASHED_VERSION
            bytes32 _hashedVersion;
            string _name;
            string _version;
        }
        // keccak256(abi.encode(uint256(keccak256("openzeppelin.storage.EIP712")) - 1)) & ~bytes32(uint256(0xff))
        bytes32 private constant EIP712StorageLocation = 0xa16a46d94261c7517cc8ff89f61c0ce93598e3c849801011dee649a6a557d100;
        function _getEIP712Storage() private pure returns (EIP712Storage storage $) {
            assembly {
                $.slot := EIP712StorageLocation
            }
        }
        /**
         * @dev Initializes the domain separator and parameter caches.
         *
         * The meaning of `name` and `version` is specified in
         * https://eips.ethereum.org/EIPS/eip-712#definition-of-domainseparator[EIP-712]:
         *
         * - `name`: the user readable name of the signing domain, i.e. the name of the DApp or the protocol.
         * - `version`: the current major version of the signing domain.
         *
         * NOTE: These parameters cannot be changed except through a xref:learn::upgrading-smart-contracts.adoc[smart
         * contract upgrade].
         */
        function __EIP712_init(string memory name, string memory version) internal onlyInitializing {
            __EIP712_init_unchained(name, version);
        }
        function __EIP712_init_unchained(string memory name, string memory version) internal onlyInitializing {
            EIP712Storage storage $ = _getEIP712Storage();
            $._name = name;
            $._version = version;
            // Reset prior values in storage if upgrading
            $._hashedName = 0;
            $._hashedVersion = 0;
        }
        /**
         * @dev Returns the domain separator for the current chain.
         */
        function _domainSeparatorV4() internal view returns (bytes32) {
            return _buildDomainSeparator();
        }
        function _buildDomainSeparator() private view returns (bytes32) {
            return keccak256(abi.encode(TYPE_HASH, _EIP712NameHash(), _EIP712VersionHash(), block.chainid, address(this)));
        }
        /**
         * @dev Given an already https://eips.ethereum.org/EIPS/eip-712#definition-of-hashstruct[hashed struct], this
         * function returns the hash of the fully encoded EIP712 message for this domain.
         *
         * This hash can be used together with {ECDSA-recover} to obtain the signer of a message. For example:
         *
         * ```solidity
         * bytes32 digest = _hashTypedDataV4(keccak256(abi.encode(
         *     keccak256("Mail(address to,string contents)"),
         *     mailTo,
         *     keccak256(bytes(mailContents))
         * )));
         * address signer = ECDSA.recover(digest, signature);
         * ```
         */
        function _hashTypedDataV4(bytes32 structHash) internal view virtual returns (bytes32) {
            return MessageHashUtils.toTypedDataHash(_domainSeparatorV4(), structHash);
        }
        /**
         * @dev See {IERC-5267}.
         */
        function eip712Domain()
            public
            view
            virtual
            returns (
                bytes1 fields,
                string memory name,
                string memory version,
                uint256 chainId,
                address verifyingContract,
                bytes32 salt,
                uint256[] memory extensions
            )
        {
            EIP712Storage storage $ = _getEIP712Storage();
            // If the hashed name and version in storage are non-zero, the contract hasn't been properly initialized
            // and the EIP712 domain is not reliable, as it will be missing name and version.
            require($._hashedName == 0 && $._hashedVersion == 0, "EIP712: Uninitialized");
            return (
                hex"0f", // 01111
                _EIP712Name(),
                _EIP712Version(),
                block.chainid,
                address(this),
                bytes32(0),
                new uint256[](0)
            );
        }
        /**
         * @dev The name parameter for the EIP712 domain.
         *
         * NOTE: This function reads from storage by default, but can be redefined to return a constant value if gas costs
         * are a concern.
         */
        function _EIP712Name() internal view virtual returns (string memory) {
            EIP712Storage storage $ = _getEIP712Storage();
            return $._name;
        }
        /**
         * @dev The version parameter for the EIP712 domain.
         *
         * NOTE: This function reads from storage by default, but can be redefined to return a constant value if gas costs
         * are a concern.
         */
        function _EIP712Version() internal view virtual returns (string memory) {
            EIP712Storage storage $ = _getEIP712Storage();
            return $._version;
        }
        /**
         * @dev The hash of the name parameter for the EIP712 domain.
         *
         * NOTE: In previous versions this function was virtual. In this version you should override `_EIP712Name` instead.
         */
        function _EIP712NameHash() internal view returns (bytes32) {
            EIP712Storage storage $ = _getEIP712Storage();
            string memory name = _EIP712Name();
            if (bytes(name).length > 0) {
                return keccak256(bytes(name));
            } else {
                // If the name is empty, the contract may have been upgraded without initializing the new storage.
                // We return the name hash in storage if non-zero, otherwise we assume the name is empty by design.
                bytes32 hashedName = $._hashedName;
                if (hashedName != 0) {
                    return hashedName;
                } else {
                    return keccak256("");
                }
            }
        }
        /**
         * @dev The hash of the version parameter for the EIP712 domain.
         *
         * NOTE: In previous versions this function was virtual. In this version you should override `_EIP712Version` instead.
         */
        function _EIP712VersionHash() internal view returns (bytes32) {
            EIP712Storage storage $ = _getEIP712Storage();
            string memory version = _EIP712Version();
            if (bytes(version).length > 0) {
                return keccak256(bytes(version));
            } else {
                // If the version is empty, the contract may have been upgraded without initializing the new storage.
                // We return the version hash in storage if non-zero, otherwise we assume the version is empty by design.
                bytes32 hashedVersion = $._hashedVersion;
                if (hashedVersion != 0) {
                    return hashedVersion;
                } else {
                    return keccak256("");
                }
            }
        }
    }
    // SPDX-License-Identifier: MIT
    // OpenZeppelin Contracts (last updated v5.0.0) (utils/Nonces.sol)
    pragma solidity ^0.8.20;
    import {Initializable} from "../proxy/utils/Initializable.sol";
    /**
     * @dev Provides tracking nonces for addresses. Nonces will only increment.
     */
    abstract contract NoncesUpgradeable is Initializable {
        /**
         * @dev The nonce used for an `account` is not the expected current nonce.
         */
        error InvalidAccountNonce(address account, uint256 currentNonce);
        /// @custom:storage-location erc7201:openzeppelin.storage.Nonces
        struct NoncesStorage {
            mapping(address account => uint256) _nonces;
        }
        // keccak256(abi.encode(uint256(keccak256("openzeppelin.storage.Nonces")) - 1)) & ~bytes32(uint256(0xff))
        bytes32 private constant NoncesStorageLocation = 0x5ab42ced628888259c08ac98db1eb0cf702fc1501344311d8b100cd1bfe4bb00;
        function _getNoncesStorage() private pure returns (NoncesStorage storage $) {
            assembly {
                $.slot := NoncesStorageLocation
            }
        }
        function __Nonces_init() internal onlyInitializing {
        }
        function __Nonces_init_unchained() internal onlyInitializing {
        }
        /**
         * @dev Returns the next unused nonce for an address.
         */
        function nonces(address owner) public view virtual returns (uint256) {
            NoncesStorage storage $ = _getNoncesStorage();
            return $._nonces[owner];
        }
        /**
         * @dev Consumes a nonce.
         *
         * Returns the current value and increments nonce.
         */
        function _useNonce(address owner) internal virtual returns (uint256) {
            NoncesStorage storage $ = _getNoncesStorage();
            // For each account, the nonce has an initial value of 0, can only be incremented by one, and cannot be
            // decremented or reset. This guarantees that the nonce never overflows.
            unchecked {
                // It is important to do x++ and not ++x here.
                return $._nonces[owner]++;
            }
        }
        /**
         * @dev Same as {_useNonce} but checking that `nonce` is the next valid for `owner`.
         */
        function _useCheckedNonce(address owner, uint256 nonce) internal virtual {
            uint256 current = _useNonce(owner);
            if (nonce != current) {
                revert InvalidAccountNonce(owner, current);
            }
        }
    }
    // SPDX-License-Identifier: MIT
    pragma solidity ^0.8.20;
    import {OAppUpgradeable, Origin} from "@layerzerolabs/oapp-evm-upgradeable/contracts/oapp/OAppUpgradeable.sol";
    import {OAppOptionsType3Upgradeable} from
        "@layerzerolabs/oapp-evm-upgradeable/contracts/oapp/libs/OAppOptionsType3Upgradeable.sol";
    import {IOAppMsgInspector} from "@layerzerolabs/oapp-evm/contracts/oapp/interfaces/IOAppMsgInspector.sol";
    import {OAppPreCrimeSimulatorUpgradeable} from
        "@layerzerolabs/oapp-evm-upgradeable/contracts/precrime/OAppPreCrimeSimulatorUpgradeable.sol";
    import {
        IOFT,
        SendParam,
        OFTLimit,
        OFTReceipt,
        OFTFeeDetail,
        MessagingReceipt,
        MessagingFee
    } from "@layerzerolabs/oft-evm/contracts/interfaces/IOFT.sol";
    import {OFTMsgCodec} from "@layerzerolabs/oft-evm/contracts/libs/OFTMsgCodec.sol";
    import {OFTComposeMsgCodec} from "@layerzerolabs/oft-evm/contracts/libs/OFTComposeMsgCodec.sol";
    /**
     * @title OFTCore
     * @dev Abstract contract for the OftChain (OFT) token.
     */
    abstract contract OFTCoreUpgradeable is
        IOFT,
        OAppUpgradeable,
        OAppPreCrimeSimulatorUpgradeable,
        OAppOptionsType3Upgradeable
    {
        using OFTMsgCodec for bytes;
        using OFTMsgCodec for bytes32;
        struct OFTCoreStorage {
            // Address of an optional contract to inspect both 'message' and 'options'
            address msgInspector;
        }
        // keccak256(abi.encode(uint256(keccak256("layerzerov2.storage.oftcore")) - 1)) & ~bytes32(uint256(0xff))
        bytes32 private constant OFT_CORE_STORAGE_LOCATION =
            0x41db8a78b0206aba5c54bcbfc2bda0d84082a84eb88e680379a57b9e9f653c00;
        // @notice Provides a conversion rate when swapping between denominations of SD and LD
        //      - shareDecimals == SD == shared Decimals
        //      - localDecimals == LD == local decimals
        // @dev Considers that tokens have different decimal amounts on various chains.
        // @dev eg.
        //  For a token
        //      - locally with 4 decimals --> 1.2345 => uint(12345)
        //      - remotely with 2 decimals --> 1.23 => uint(123)
        //      - The conversion rate would be 10 ** (4 - 2) = 100
        //  @dev If you want to send 1.2345 -> (uint 12345), you CANNOT represent that value on the remote,
        //  you can only display 1.23 -> uint(123).
        //  @dev To preserve the dust that would otherwise be lost on that conversion,
        //  we need to unify a denomination that can be represented on ALL chains inside of the OFT mesh
        uint256 public immutable decimalConversionRate;
        // @notice Msg types that are used to identify the various OFT operations.
        // @dev This can be extended in child contracts for non-default oft operations
        // @dev These values are used in things like combineOptions() in OAppOptionsType3.sol.
        uint16 public constant SEND = 1;
        uint16 public constant SEND_AND_CALL = 2;
        event MsgInspectorSet(address inspector);
        function _getOFTCoreStorage() internal pure returns (OFTCoreStorage storage $) {
            assembly {
                $.slot := OFT_CORE_STORAGE_LOCATION
            }
        }
        /**
         * @dev Constructor.
         * @param _localDecimals The decimals of the token on the local chain (this chain).
         * @param _endpoint The address of the LayerZero endpoint.
         */
        constructor(uint8 _localDecimals, address _endpoint) OAppUpgradeable(_endpoint) {
            if (_localDecimals < sharedDecimals()) revert InvalidLocalDecimals();
            decimalConversionRate = 10 ** (_localDecimals - sharedDecimals());
        }
        /**
         * @notice Retrieves interfaceID and the version of the OFT.
         * @return interfaceId The interface ID.
         * @return version The version.
         *
         * @dev interfaceId: This specific interface ID is '0x02e49c2c'.
         * @dev version: Indicates a cross-chain compatible msg encoding with other OFTs.
         * @dev If a new feature is added to the OFT cross-chain msg encoding, the version will be incremented.
         * ie. localOFT version(x,1) CAN send messages to remoteOFT version(x,1)
         */
        function oftVersion() external pure virtual returns (bytes4 interfaceId, uint64 version) {
            return (type(IOFT).interfaceId, 1);
        }
        /**
         * @dev Initializes the OFTCore contract.
         * @param _delegate The delegate capable of making OApp configurations inside of the endpoint.
         *
         * @dev The delegate typically should be set as the owner of the contract.
         * @dev Ownable is not initialized here on purpose. It should be initialized in the child contract to
         * accommodate the different version of Ownable.
         */
        function __OFTCore_init(address _delegate) internal onlyInitializing {
            __OApp_init(_delegate);
            __OAppPreCrimeSimulator_init();
            __OAppOptionsType3_init();
        }
        function __OFTCore_init_unchained() internal onlyInitializing {}
        function msgInspector() public view returns (address) {
            OFTCoreStorage storage $ = _getOFTCoreStorage();
            return $.msgInspector;
        }
        /**
         * @dev Retrieves the shared decimals of the OFT.
         * @return The shared decimals of the OFT.
         *
         * @dev Sets an implicit cap on the amount of tokens, over uint64.max() will need some sort of outbound cap / totalSupply cap
         * Lowest common decimal denominator between chains.
         * Defaults to 6 decimal places to provide up to 18,446,744,073,709.551615 units (max uint64).
         * For tokens exceeding this totalSupply(), they will need to override the sharedDecimals function with something smaller.
         * ie. 4 sharedDecimals would be 1,844,674,407,370,955.1615
         */
        function sharedDecimals() public pure virtual returns (uint8) {
            return 6;
        }
        /**
         * @dev Sets the message inspector address for the OFT.
         * @param _msgInspector The address of the message inspector.
         *
         * @dev This is an optional contract that can be used to inspect both 'message' and 'options'.
         * @dev Set it to address(0) to disable it, or set it to a contract address to enable it.
         */
        function setMsgInspector(address _msgInspector) public virtual onlyLZAdmin {
            OFTCoreStorage storage $ = _getOFTCoreStorage();
            $.msgInspector = _msgInspector;
            emit MsgInspectorSet(_msgInspector);
        }
        /**
         * @notice Provides a quote for OFT-related operations.
         * @param _sendParam The parameters for the send operation.
         * @return oftLimit The OFT limit information.
         * @return oftFeeDetails The details of OFT fees.
         * @return oftReceipt The OFT receipt information.
         */
        function quoteOFT(SendParam calldata _sendParam)
            external
            view
            virtual
            returns (OFTLimit memory oftLimit, OFTFeeDetail[] memory oftFeeDetails, OFTReceipt memory oftReceipt)
        {
            uint256 minAmountLD = 0; // Unused in the default implementation.
            uint256 maxAmountLD = type(uint64).max; // Unused in the default implementation.
            oftLimit = OFTLimit(minAmountLD, maxAmountLD);
            // Unused in the default implementation; reserved for future complex fee details.
            oftFeeDetails = new OFTFeeDetail[](0);
            // @dev This is the same as the send() operation, but without the actual send.
            // - amountSentLD is the amount in local decimals that would be sent from the sender.
            // - amountReceivedLD is the amount in local decimals that will be credited to the recipient on the remote OFT instance.
            // @dev The amountSentLD MIGHT not equal the amount the user actually receives. HOWEVER, the default does.
            (uint256 amountSentLD, uint256 amountReceivedLD) =
                _debitView(_sendParam.amountLD, _sendParam.minAmountLD, _sendParam.dstEid);
            oftReceipt = OFTReceipt(amountSentLD, amountReceivedLD);
        }
        /**
         * @notice Provides a quote for the send() operation.
         * @param _sendParam The parameters for the send() operation.
         * @param _payInLzToken Flag indicating whether the caller is paying in the LZ token.
         * @return msgFee The calculated LayerZero messaging fee from the send() operation.
         *
         * @dev MessagingFee: LayerZero msg fee
         *  - nativeFee: The native fee.
         *  - lzTokenFee: The lzToken fee.
         */
        function quoteSend(SendParam calldata _sendParam, bool _payInLzToken)
            external
            view
            virtual
            returns (MessagingFee memory msgFee)
        {
            // @dev mock the amount to receive, this is the same operation used in the send().
            // The quote is as similar as possible to the actual send() operation.
            (, uint256 amountReceivedLD) = _debitView(_sendParam.amountLD, _sendParam.minAmountLD, _sendParam.dstEid);
            // @dev Builds the options and OFT message to quote in the endpoint.
            (bytes memory message, bytes memory options) = _buildMsgAndOptions(_sendParam, amountReceivedLD);
            // @dev Calculates the LayerZero fee for the send() operation.
            return _quote(_sendParam.dstEid, message, options, _payInLzToken);
        }
        /**
         * @dev Executes the send operation.
         * @param _sendParam The parameters for the send operation.
         * @param _fee The calculated fee for the send() operation.
         *      - nativeFee: The native fee.
         *      - lzTokenFee: The lzToken fee.
         * @param _refundAddress The address to receive any excess funds.
         * @return msgReceipt The receipt for the send operation.
         * @return oftReceipt The OFT receipt information.
         *
         * @dev MessagingReceipt: LayerZero msg receipt
         *  - guid: The unique identifier for the sent message.
         *  - nonce: The nonce of the sent message.
         *  - fee: The LayerZero fee incurred for the message.
         */
        function send(SendParam calldata _sendParam, MessagingFee calldata _fee, address _refundAddress)
            external
            payable
            virtual
            returns (MessagingReceipt memory msgReceipt, OFTReceipt memory oftReceipt)
        {
            // @dev Applies the token transfers regarding this send() operation.
            // - amountSentLD is the amount in local decimals that was ACTUALLY sent/debited from the sender.
            // - amountReceivedLD is the amount in local decimals that will be received/credited to the recipient on the remote OFT instance.
            (uint256 amountSentLD, uint256 amountReceivedLD) =
                _debit(msg.sender, _sendParam.amountLD, _sendParam.minAmountLD, _sendParam.dstEid);
            // @dev Builds the options and OFT message to quote in the endpoint.
            (bytes memory message, bytes memory options) = _buildMsgAndOptions(_sendParam, amountReceivedLD);
            // @dev Sends the message to the LayerZero endpoint and returns the LayerZero msg receipt.
            msgReceipt = _lzSend(_sendParam.dstEid, message, options, _fee, _refundAddress);
            // @dev Formulate the OFT receipt.
            oftReceipt = OFTReceipt(amountSentLD, amountReceivedLD);
            emit OFTSent(msgReceipt.guid, _sendParam.dstEid, msg.sender, amountSentLD, amountReceivedLD);
        }
        /**
         * @dev Internal function to build the message and options.
         * @param _sendParam The parameters for the send() operation.
         * @param _amountLD The amount in local decimals.
         * @return message The encoded message.
         * @return options The encoded options.
         */
        function _buildMsgAndOptions(SendParam calldata _sendParam, uint256 _amountLD)
            internal
            view
            virtual
            returns (bytes memory message, bytes memory options)
        {
            bool hasCompose;
            // @dev This generated message has the msg.sender encoded into the payload so the remote knows who the caller is.
            (message, hasCompose) = OFTMsgCodec.encode(
                _sendParam.to,
                _toSD(_amountLD),
                // @dev Must be include a non empty bytes if you want to compose, EVEN if you dont need it on the remote.
                // EVEN if you dont require an arbitrary payload to be sent... eg. '0x01'
                _sendParam.composeMsg
            );
            // @dev Change the msg type depending if its composed or not.
            uint16 msgType = hasCompose ? SEND_AND_CALL : SEND;
            // @dev Combine the callers _extraOptions with the enforced options via the OAppOptionsType3.
            options = combineOptions(_sendParam.dstEid, msgType, _sendParam.extraOptions);
            OFTCoreStorage storage $ = _getOFTCoreStorage();
            // @dev Optionally inspect the message and options depending if the OApp owner has set a msg inspector.
            // @dev If it fails inspection, needs to revert in the implementation. ie. does not rely on return boolean
            address inspector = $.msgInspector; // caches the msgInspector to avoid potential double storage read
            if (inspector != address(0)) IOAppMsgInspector(inspector).inspect(message, options);
        }
        /**
         * @dev Internal function to handle the receive on the LayerZero endpoint.
         * @param _origin The origin information.
         *  - srcEid: The source chain endpoint ID.
         *  - sender: The sender address from the src chain.
         *  - nonce: The nonce of the LayerZero message.
         * @param _guid The unique identifier for the received LayerZero message.
         * @param _message The encoded message.
         * @dev _executor The address of the executor.
         * @dev _extraData Additional data.
         */
        function _lzReceive(
            Origin calldata _origin,
            bytes32 _guid,
            bytes calldata _message,
            address, /*_executor*/ // @dev unused in the default implementation.
            bytes calldata /*_extraData*/ // @dev unused in the default implementation.
        ) internal virtual override {
            // @dev The src sending chain doesnt know the address length on this chain (potentially non-evm)
            // Thus everything is bytes32() encoded in flight.
            address toAddress = _message.sendTo().bytes32ToAddress();
            // @dev Credit the amountLD to the recipient and return the ACTUAL amount the recipient received in local decimals
            uint256 amountReceivedLD = _credit(toAddress, _toLD(_message.amountSD()), _origin.srcEid);
            if (_message.isComposed()) {
                // @dev Proprietary composeMsg format for the OFT.
                bytes memory composeMsg =
                    OFTComposeMsgCodec.encode(_origin.nonce, _origin.srcEid, amountReceivedLD, _message.composeMsg());
                // @dev Stores the lzCompose payload that will be executed in a separate tx.
                // Standardizes functionality for executing arbitrary contract invocation on some non-evm chains.
                // @dev The off-chain executor will listen and process the msg based on the src-chain-callers compose options passed.
                // @dev The index is used when a OApp needs to compose multiple msgs on lzReceive.
                // For default OFT implementation there is only 1 compose msg per lzReceive, thus its always 0.
                endpoint.sendCompose(toAddress, _guid, 0, /* the index of the composed message*/ composeMsg);
            }
            emit OFTReceived(_guid, _origin.srcEid, toAddress, amountReceivedLD);
        }
        /**
         * @dev Internal function to handle the OAppPreCrimeSimulator simulated receive.
         * @param _origin The origin information.
         *  - srcEid: The source chain endpoint ID.
         *  - sender: The sender address from the src chain.
         *  - nonce: The nonce of the LayerZero message.
         * @param _guid The unique identifier for the received LayerZero message.
         * @param _message The LayerZero message.
         * @param _executor The address of the off-chain executor.
         * @param _extraData Arbitrary data passed by the msg executor.
         *
         * @dev Enables the preCrime simulator to mock sending lzReceive() messages,
         * routes the msg down from the OAppPreCrimeSimulator, and back up to the OAppReceiver.
         */
        function _lzReceiveSimulate(
            Origin calldata _origin,
            bytes32 _guid,
            bytes calldata _message,
            address _executor,
            bytes calldata _extraData
        ) internal virtual override {
            _lzReceive(_origin, _guid, _message, _executor, _extraData);
        }
        /**
         * @dev Check if the peer is considered 'trusted' by the OApp.
         * @param _eid The endpoint ID to check.
         * @param _peer The peer to check.
         * @return Whether the peer passed is considered 'trusted' by the OApp.
         *
         * @dev Enables OAppPreCrimeSimulator to check whether a potential Inbound Packet is from a trusted source.
         */
        function isPeer(uint32 _eid, bytes32 _peer) public view virtual override returns (bool) {
            return peers(_eid) == _peer;
        }
        /**
         * @dev Internal function to remove dust from the given local decimal amount.
         * @param _amountLD The amount in local decimals.
         * @return amountLD The amount after removing dust.
         *
         * @dev Prevents the loss of dust when moving amounts between chains with different decimals.
         * @dev eg. uint(123) with a conversion rate of 100 becomes uint(100).
         */
        function _removeDust(uint256 _amountLD) internal view virtual returns (uint256 amountLD) {
            return (_amountLD / decimalConversionRate) * decimalConversionRate;
        }
        /**
         * @dev Internal function to convert an amount from shared decimals into local decimals.
         * @param _amountSD The amount in shared decimals.
         * @return amountLD The amount in local decimals.
         */
        function _toLD(uint64 _amountSD) internal view virtual returns (uint256 amountLD) {
            return _amountSD * decimalConversionRate;
        }
        /**
         * @dev Internal function to convert an amount from local decimals into shared decimals.
         * @param _amountLD The amount in local decimals.
         * @return amountSD The amount in shared decimals.
         */
        function _toSD(uint256 _amountLD) internal view virtual returns (uint64 amountSD) {
            return uint64(_amountLD / decimalConversionRate);
        }
        /**
         * @dev Internal function to mock the amount mutation from a OFT debit() operation.
         * @param _amountLD The amount to send in local decimals.
         * @param _minAmountLD The minimum amount to send in local decimals.
         * @dev _dstEid The destination endpoint ID.
         * @return amountSentLD The amount sent, in local decimals.
         * @return amountReceivedLD The amount to be received on the remote chain, in local decimals.
         *
         * @dev This is where things like fees would be calculated and deducted from the amount to be received on the remote.
         */
        function _debitView(uint256 _amountLD, uint256 _minAmountLD, uint32 /*_dstEid*/ )
            internal
            view
            virtual
            returns (uint256 amountSentLD, uint256 amountReceivedLD)
        {
            // @dev Remove the dust so nothing is lost on the conversion between chains with different decimals for the token.
            amountSentLD = _removeDust(_amountLD);
            // @dev The amount to send is the same as amount received in the default implementation.
            amountReceivedLD = amountSentLD;
            // @dev Check for slippage.
            if (amountReceivedLD < _minAmountLD) {
                revert SlippageExceeded(amountReceivedLD, _minAmountLD);
            }
        }
        /**
         * @dev Internal function to perform a debit operation.
         * @param _from The address to debit from.
         * @param _amountLD The amount to send in local decimals.
         * @param _minAmountLD The minimum amount to send in local decimals.
         * @param _dstEid The destination endpoint ID.
         * @return amountSentLD The amount sent in local decimals.
         * @return amountReceivedLD The amount received in local decimals on the remote.
         *
         * @dev Defined here but are intended to be overriden depending on the OFT implementation.
         * @dev Depending on OFT implementation the _amountLD could differ from the amountReceivedLD.
         */
        function _debit(address _from, uint256 _amountLD, uint256 _minAmountLD, uint32 _dstEid)
            internal
            virtual
            returns (uint256 amountSentLD, uint256 amountReceivedLD);
        /**
         * @dev Internal function to perform a credit operation.
         * @param _to The address to credit.
         * @param _amountLD The amount to credit in local decimals.
         * @param _srcEid The source endpoint ID.
         * @return amountReceivedLD The amount ACTUALLY received in local decimals.
         *
         * @dev Defined here but are intended to be overriden depending on the OFT implementation.
         * @dev Depending on OFT implementation the _amountLD could differ from the amountReceivedLD.
         */
        function _credit(address _to, uint256 _amountLD, uint32 _srcEid)
            internal
            virtual
            returns (uint256 amountReceivedLD);
    }
    // SPDX-License-Identifier: MIT
    // OpenZeppelin Contracts (last updated v5.1.0) (token/ERC20/extensions/IERC20Metadata.sol)
    pragma solidity ^0.8.20;
    import {IERC20} from "../IERC20.sol";
    /**
     * @dev Interface for the optional metadata functions from the ERC-20 standard.
     */
    interface IERC20Metadata is IERC20 {
        /**
         * @dev Returns the name of the token.
         */
        function name() external view returns (string memory);
        /**
         * @dev Returns the symbol of the token.
         */
        function symbol() external view returns (string memory);
        /**
         * @dev Returns the decimals places of the token.
         */
        function decimals() external view returns (uint8);
    }
    // SPDX-License-Identifier: MIT
    // OpenZeppelin Contracts (last updated v5.1.0) (interfaces/draft-IERC6093.sol)
    pragma solidity ^0.8.20;
    /**
     * @dev Standard ERC-20 Errors
     * Interface of the https://eips.ethereum.org/EIPS/eip-6093[ERC-6093] custom errors for ERC-20 tokens.
     */
    interface IERC20Errors {
        /**
         * @dev Indicates an error related to the current `balance` of a `sender`. Used in transfers.
         * @param sender Address whose tokens are being transferred.
         * @param balance Current balance for the interacting account.
         * @param needed Minimum amount required to perform a transfer.
         */
        error ERC20InsufficientBalance(address sender, uint256 balance, uint256 needed);
        /**
         * @dev Indicates a failure with the token `sender`. Used in transfers.
         * @param sender Address whose tokens are being transferred.
         */
        error ERC20InvalidSender(address sender);
        /**
         * @dev Indicates a failure with the token `receiver`. Used in transfers.
         * @param receiver Address to which tokens are being transferred.
         */
        error ERC20InvalidReceiver(address receiver);
        /**
         * @dev Indicates a failure with the `spender`’s `allowance`. Used in transfers.
         * @param spender Address that may be allowed to operate on tokens without being their owner.
         * @param allowance Amount of tokens a `spender` is allowed to operate with.
         * @param needed Minimum amount required to perform a transfer.
         */
        error ERC20InsufficientAllowance(address spender, uint256 allowance, uint256 needed);
        /**
         * @dev Indicates a failure with the `approver` of a token to be approved. Used in approvals.
         * @param approver Address initiating an approval operation.
         */
        error ERC20InvalidApprover(address approver);
        /**
         * @dev Indicates a failure with the `spender` to be approved. Used in approvals.
         * @param spender Address that may be allowed to operate on tokens without being their owner.
         */
        error ERC20InvalidSpender(address spender);
    }
    /**
     * @dev Standard ERC-721 Errors
     * Interface of the https://eips.ethereum.org/EIPS/eip-6093[ERC-6093] custom errors for ERC-721 tokens.
     */
    interface IERC721Errors {
        /**
         * @dev Indicates that an address can't be an owner. For example, `address(0)` is a forbidden owner in ERC-20.
         * Used in balance queries.
         * @param owner Address of the current owner of a token.
         */
        error ERC721InvalidOwner(address owner);
        /**
         * @dev Indicates a `tokenId` whose `owner` is the zero address.
         * @param tokenId Identifier number of a token.
         */
        error ERC721NonexistentToken(uint256 tokenId);
        /**
         * @dev Indicates an error related to the ownership over a particular token. Used in transfers.
         * @param sender Address whose tokens are being transferred.
         * @param tokenId Identifier number of a token.
         * @param owner Address of the current owner of a token.
         */
        error ERC721IncorrectOwner(address sender, uint256 tokenId, address owner);
        /**
         * @dev Indicates a failure with the token `sender`. Used in transfers.
         * @param sender Address whose tokens are being transferred.
         */
        error ERC721InvalidSender(address sender);
        /**
         * @dev Indicates a failure with the token `receiver`. Used in transfers.
         * @param receiver Address to which tokens are being transferred.
         */
        error ERC721InvalidReceiver(address receiver);
        /**
         * @dev Indicates a failure with the `operator`’s approval. Used in transfers.
         * @param operator Address that may be allowed to operate on tokens without being their owner.
         * @param tokenId Identifier number of a token.
         */
        error ERC721InsufficientApproval(address operator, uint256 tokenId);
        /**
         * @dev Indicates a failure with the `approver` of a token to be approved. Used in approvals.
         * @param approver Address initiating an approval operation.
         */
        error ERC721InvalidApprover(address approver);
        /**
         * @dev Indicates a failure with the `operator` to be approved. Used in approvals.
         * @param operator Address that may be allowed to operate on tokens without being their owner.
         */
        error ERC721InvalidOperator(address operator);
    }
    /**
     * @dev Standard ERC-1155 Errors
     * Interface of the https://eips.ethereum.org/EIPS/eip-6093[ERC-6093] custom errors for ERC-1155 tokens.
     */
    interface IERC1155Errors {
        /**
         * @dev Indicates an error related to the current `balance` of a `sender`. Used in transfers.
         * @param sender Address whose tokens are being transferred.
         * @param balance Current balance for the interacting account.
         * @param needed Minimum amount required to perform a transfer.
         * @param tokenId Identifier number of a token.
         */
        error ERC1155InsufficientBalance(address sender, uint256 balance, uint256 needed, uint256 tokenId);
        /**
         * @dev Indicates a failure with the token `sender`. Used in transfers.
         * @param sender Address whose tokens are being transferred.
         */
        error ERC1155InvalidSender(address sender);
        /**
         * @dev Indicates a failure with the token `receiver`. Used in transfers.
         * @param receiver Address to which tokens are being transferred.
         */
        error ERC1155InvalidReceiver(address receiver);
        /**
         * @dev Indicates a failure with the `operator`’s approval. Used in transfers.
         * @param operator Address that may be allowed to operate on tokens without being their owner.
         * @param owner Address of the current owner of a token.
         */
        error ERC1155MissingApprovalForAll(address operator, address owner);
        /**
         * @dev Indicates a failure with the `approver` of a token to be approved. Used in approvals.
         * @param approver Address initiating an approval operation.
         */
        error ERC1155InvalidApprover(address approver);
        /**
         * @dev Indicates a failure with the `operator` to be approved. Used in approvals.
         * @param operator Address that may be allowed to operate on tokens without being their owner.
         */
        error ERC1155InvalidOperator(address operator);
        /**
         * @dev Indicates an array length mismatch between ids and values in a safeBatchTransferFrom operation.
         * Used in batch transfers.
         * @param idsLength Length of the array of token identifiers
         * @param valuesLength Length of the array of token amounts
         */
        error ERC1155InvalidArrayLength(uint256 idsLength, uint256 valuesLength);
    }
    // SPDX-License-Identifier: MIT
    // OpenZeppelin Contracts (last updated v5.1.0) (utils/cryptography/MessageHashUtils.sol)
    pragma solidity ^0.8.20;
    import {Strings} from "../Strings.sol";
    /**
     * @dev Signature message hash utilities for producing digests to be consumed by {ECDSA} recovery or signing.
     *
     * The library provides methods for generating a hash of a message that conforms to the
     * https://eips.ethereum.org/EIPS/eip-191[ERC-191] and https://eips.ethereum.org/EIPS/eip-712[EIP 712]
     * specifications.
     */
    library MessageHashUtils {
        /**
         * @dev Returns the keccak256 digest of an ERC-191 signed data with version
         * `0x45` (`personal_sign` messages).
         *
         * The digest is calculated by prefixing a bytes32 `messageHash` with
         * `"\\x19Ethereum Signed Message:\
    32"` and hashing the result. It corresponds with the
         * hash signed when using the https://eth.wiki/json-rpc/API#eth_sign[`eth_sign`] JSON-RPC method.
         *
         * NOTE: The `messageHash` parameter is intended to be the result of hashing a raw message with
         * keccak256, although any bytes32 value can be safely used because the final digest will
         * be re-hashed.
         *
         * See {ECDSA-recover}.
         */
        function toEthSignedMessageHash(bytes32 messageHash) internal pure returns (bytes32 digest) {
            assembly ("memory-safe") {
                mstore(0x00, "\\x19Ethereum Signed Message:\
    32") // 32 is the bytes-length of messageHash
                mstore(0x1c, messageHash) // 0x1c (28) is the length of the prefix
                digest := keccak256(0x00, 0x3c) // 0x3c is the length of the prefix (0x1c) + messageHash (0x20)
            }
        }
        /**
         * @dev Returns the keccak256 digest of an ERC-191 signed data with version
         * `0x45` (`personal_sign` messages).
         *
         * The digest is calculated by prefixing an arbitrary `message` with
         * `"\\x19Ethereum Signed Message:\
    " + len(message)` and hashing the result. It corresponds with the
         * hash signed when using the https://eth.wiki/json-rpc/API#eth_sign[`eth_sign`] JSON-RPC method.
         *
         * See {ECDSA-recover}.
         */
        function toEthSignedMessageHash(bytes memory message) internal pure returns (bytes32) {
            return
                keccak256(bytes.concat("\\x19Ethereum Signed Message:\
    ", bytes(Strings.toString(message.length)), message));
        }
        /**
         * @dev Returns the keccak256 digest of an ERC-191 signed data with version
         * `0x00` (data with intended validator).
         *
         * The digest is calculated by prefixing an arbitrary `data` with `"\\x19\\x00"` and the intended
         * `validator` address. Then hashing the result.
         *
         * See {ECDSA-recover}.
         */
        function toDataWithIntendedValidatorHash(address validator, bytes memory data) internal pure returns (bytes32) {
            return keccak256(abi.encodePacked(hex"19_00", validator, data));
        }
        /**
         * @dev Returns the keccak256 digest of an EIP-712 typed data (ERC-191 version `0x01`).
         *
         * The digest is calculated from a `domainSeparator` and a `structHash`, by prefixing them with
         * `\\x19\\x01` and hashing the result. It corresponds to the hash signed by the
         * https://eips.ethereum.org/EIPS/eip-712[`eth_signTypedData`] JSON-RPC method as part of EIP-712.
         *
         * See {ECDSA-recover}.
         */
        function toTypedDataHash(bytes32 domainSeparator, bytes32 structHash) internal pure returns (bytes32 digest) {
            assembly ("memory-safe") {
                let ptr := mload(0x40)
                mstore(ptr, hex"19_01")
                mstore(add(ptr, 0x02), domainSeparator)
                mstore(add(ptr, 0x22), structHash)
                digest := keccak256(ptr, 0x42)
            }
        }
    }
    // SPDX-License-Identifier: MIT
    // OpenZeppelin Contracts (last updated v5.0.0) (interfaces/IERC5267.sol)
    pragma solidity ^0.8.20;
    interface IERC5267 {
        /**
         * @dev MAY be emitted to signal that the domain could have changed.
         */
        event EIP712DomainChanged();
        /**
         * @dev returns the fields and values that describe the domain separator used by this contract for EIP-712
         * signature.
         */
        function eip712Domain()
            external
            view
            returns (
                bytes1 fields,
                string memory name,
                string memory version,
                uint256 chainId,
                address verifyingContract,
                bytes32 salt,
                uint256[] memory extensions
            );
    }
    // SPDX-License-Identifier: MIT
    pragma solidity ^0.8.20;
    // @dev Import the 'MessagingFee' and 'MessagingReceipt' so it's exposed to OApp implementers
    // solhint-disable-next-line no-unused-import
    import { OAppSenderUpgradeable, MessagingFee, MessagingReceipt } from "./OAppSenderUpgradeable.sol";
    // @dev Import the 'Origin' so it's exposed to OApp implementers
    // solhint-disable-next-line no-unused-import
    import { OAppReceiverUpgradeable, Origin } from "./OAppReceiverUpgradeable.sol";
    import { OAppCoreUpgradeable } from "./OAppCoreUpgradeable.sol";
    /**
     * @title OApp
     * @dev Abstract contract serving as the base for OApp implementation, combining OAppSender and OAppReceiver functionality.
     */
    abstract contract OAppUpgradeable is OAppSenderUpgradeable, OAppReceiverUpgradeable {
        /**
         * @dev Constructor to initialize the OApp with the provided endpoint and owner.
         * @param _endpoint The address of the LOCAL LayerZero endpoint.
         */
        constructor(address _endpoint) OAppCoreUpgradeable(_endpoint) {}
        /**
         * @dev Initializes the OApp with the provided delegate.
         * @param _delegate The delegate capable of making OApp configurations inside of the endpoint.
         *
         * @dev The delegate typically should be set as the owner of the contract.
         * @dev Ownable is not initialized here on purpose. It should be initialized in the child contract to
         * accommodate the different version of Ownable.
         */
        function __OApp_init(address _delegate) internal onlyInitializing {
            __OAppCore_init(_delegate);
            __OAppReceiver_init_unchained();
            __OAppSender_init_unchained();
        }
        function __OApp_init_unchained() internal onlyInitializing {}
        /**
         * @notice Retrieves the OApp version information.
         * @return senderVersion The version of the OAppSender.sol implementation.
         * @return receiverVersion The version of the OAppReceiver.sol implementation.
         */
        function oAppVersion()
            public
            pure
            virtual
            override(OAppSenderUpgradeable, OAppReceiverUpgradeable)
            returns (uint64 senderVersion, uint64 receiverVersion)
        {
            return (SENDER_VERSION, RECEIVER_VERSION);
        }
    }
    // SPDX-License-Identifier: MIT
    pragma solidity ^0.8.20;
    import {OnlyLZAdmin} from "../../OnlyLZAdmin.sol";
    import {Initializable} from "@openzeppelin/contracts-upgradeable/proxy/utils/Initializable.sol";
    import {
        IOAppOptionsType3,
        EnforcedOptionParam
    } from "@layerzerolabs/oapp-evm/contracts/oapp/interfaces/IOAppOptionsType3.sol";
    /**
     * @title OAppOptionsType3
     * @dev Abstract contract implementing the IOAppOptionsType3 interface with type 3 options.
     */
    abstract contract OAppOptionsType3Upgradeable is IOAppOptionsType3, Initializable, OnlyLZAdmin {
        struct OAppOptionsType3Storage {
            // @dev The "msgType" should be defined in the child contract.
            mapping(uint32 => mapping(uint16 => bytes)) enforcedOptions;
        }
        // keccak256(abi.encode(uint256(keccak256("layerzerov2.storage.oappoptionstype3")) - 1)) & ~bytes32(uint256(0xff))
        bytes32 private constant OAPP_OPTIONS_TYPE_3_STORAGE_LOCATION =
            0x8d2bda5d9f6ffb5796910376005392955773acee5548d0fcdb10e7c264ea0000;
        uint16 internal constant OPTION_TYPE_3 = 3;
        function _getOAppOptionsType3Storage() internal pure returns (OAppOptionsType3Storage storage $) {
            assembly {
                $.slot := OAPP_OPTIONS_TYPE_3_STORAGE_LOCATION
            }
        }
        /**
         * @dev Ownable is not initialized here on purpose. It should be initialized in the child contract to
         * accommodate the different version of Ownable.
         */
        function __OAppOptionsType3_init() internal onlyInitializing {}
        function __OAppOptionsType3_init_unchained() internal onlyInitializing {}
        function enforcedOptions(uint32 _eid, uint16 _msgType) public view returns (bytes memory) {
            OAppOptionsType3Storage storage $ = _getOAppOptionsType3Storage();
            return $.enforcedOptions[_eid][_msgType];
        }
        /**
         * @dev Sets the enforced options for specific endpoint and message type combinations.
         * @param _enforcedOptions An array of EnforcedOptionParam structures specifying enforced options.
         *
         * @dev Only the owner/admin of the OApp can call this function.
         * @dev Provides a way for the OApp to enforce things like paying for PreCrime, AND/OR minimum dst lzReceive gas amounts etc.
         * @dev These enforced options can vary as the potential options/execution on the remote may differ as per the msgType.
         * eg. Amount of lzReceive() gas necessary to deliver a lzCompose() message adds overhead you dont want to pay
         * if you are only making a standard LayerZero message ie. lzReceive() WITHOUT sendCompose().
         */
        function setEnforcedOptions(EnforcedOptionParam[] calldata _enforcedOptions) public virtual onlyLZAdmin {
            OAppOptionsType3Storage storage $ = _getOAppOptionsType3Storage();
            for (uint256 i = 0; i < _enforcedOptions.length; i++) {
                // @dev Enforced options are only available for optionType 3, as type 1 and 2 dont support combining.
                _assertOptionsType3(_enforcedOptions[i].options);
                $.enforcedOptions[_enforcedOptions[i].eid][_enforcedOptions[i].msgType] = _enforcedOptions[i].options;
            }
            emit EnforcedOptionSet(_enforcedOptions);
        }
        /**
         * @notice Combines options for a given endpoint and message type.
         * @param _eid The endpoint ID.
         * @param _msgType The OAPP message type.
         * @param _extraOptions Additional options passed by the caller.
         * @return options The combination of caller specified options AND enforced options.
         *
         * @dev If there is an enforced lzReceive option:
         * - {gasLimit: 200k, msg.value: 1 ether} AND a caller supplies a lzReceive option: {gasLimit: 100k, msg.value: 0.5 ether}
         * - The resulting options will be {gasLimit: 300k, msg.value: 1.5 ether} when the message is executed on the remote lzReceive() function.
         * @dev This presence of duplicated options is handled off-chain in the verifier/executor.
         */
        function combineOptions(uint32 _eid, uint16 _msgType, bytes calldata _extraOptions)
            public
            view
            virtual
            returns (bytes memory)
        {
            OAppOptionsType3Storage storage $ = _getOAppOptionsType3Storage();
            bytes memory enforced = $.enforcedOptions[_eid][_msgType];
            // No enforced options, pass whatever the caller supplied, even if it's empty or legacy type 1/2 options.
            if (enforced.length == 0) return _extraOptions;
            // No caller options, return enforced
            if (_extraOptions.length == 0) return enforced;
            // @dev If caller provided _extraOptions, must be type 3 as its the ONLY type that can be combined.
            if (_extraOptions.length >= 2) {
                _assertOptionsType3(_extraOptions);
                // @dev Remove the first 2 bytes containing the type from the _extraOptions and combine with enforced.
                return bytes.concat(enforced, _extraOptions[2:]);
            }
            // No valid set of options was found.
            revert InvalidOptions(_extraOptions);
        }
        /**
         * @dev Internal function to assert that options are of type 3.
         * @param _options The options to be checked.
         */
        function _assertOptionsType3(bytes calldata _options) internal pure virtual {
            uint16 optionsType = uint16(bytes2(_options[0:2]));
            if (optionsType != OPTION_TYPE_3) revert InvalidOptions(_options);
        }
    }
    // SPDX-License-Identifier: MIT
    pragma solidity ^0.8.20;
    /**
     * @title IOAppMsgInspector
     * @dev Interface for the OApp Message Inspector, allowing examination of message and options contents.
     */
    interface IOAppMsgInspector {
        // Custom error message for inspection failure
        error InspectionFailed(bytes message, bytes options);
        /**
         * @notice Allows the inspector to examine LayerZero message contents and optionally throw a revert if invalid.
         * @param _message The message payload to be inspected.
         * @param _options Additional options or parameters for inspection.
         * @return valid A boolean indicating whether the inspection passed (true) or failed (false).
         *
         * @dev Optionally done as a revert, OR use the boolean provided to handle the failure.
         */
        function inspect(bytes calldata _message, bytes calldata _options) external view returns (bool valid);
    }
    // SPDX-License-Identifier: MIT
    pragma solidity ^0.8.20;
    import {OnlyLZAdmin} from "../OnlyLZAdmin.sol";
    import {Initializable} from "@openzeppelin/contracts-upgradeable/proxy/utils/Initializable.sol";
    import {IPreCrime} from "@layerzerolabs/oapp-evm/contracts/precrime/interfaces/IPreCrime.sol";
    import {
        IOAppPreCrimeSimulator,
        InboundPacket,
        Origin
    } from "@layerzerolabs/oapp-evm/contracts/precrime/interfaces/IOAppPreCrimeSimulator.sol";
    /**
     * @title OAppPreCrimeSimulator
     * @dev Abstract contract serving as the base for preCrime simulation functionality in an OApp.
     */
    abstract contract OAppPreCrimeSimulatorUpgradeable is IOAppPreCrimeSimulator, Initializable, OnlyLZAdmin {
        struct OAppPreCrimeSimulatorStorage {
            // The address of the preCrime implementation.
            address preCrime;
        }
        // keccak256(abi.encode(uint256(keccak256("layerzerov2.storage.oappprecrimesimulator")) - 1)) & ~bytes32(uint256(0xff))
        bytes32 private constant OAPP_PRE_CRIME_SIMULATOR_STORAGE_LOCATION =
            0xefb041d771d6daaa55702fff6eb740d63ba559a75d2d1d3e151c78ff2480b600;
        function _getOAppPreCrimeSimulatorStorage() internal pure returns (OAppPreCrimeSimulatorStorage storage $) {
            assembly {
                $.slot := OAPP_PRE_CRIME_SIMULATOR_STORAGE_LOCATION
            }
        }
        /**
         * @dev Ownable is not initialized here on purpose. It should be initialized in the child contract to
         * accommodate the different version of Ownable.
         */
        function __OAppPreCrimeSimulator_init() internal onlyInitializing {}
        function __OAppPreCrimeSimulator_init_unchained() internal onlyInitializing {}
        function preCrime() external view override returns (address) {
            OAppPreCrimeSimulatorStorage storage $ = _getOAppPreCrimeSimulatorStorage();
            return $.preCrime;
        }
        /**
         * @dev Retrieves the address of the OApp contract.
         * @return The address of the OApp contract.
         *
         * @dev The simulator contract is the base contract for the OApp by default.
         * @dev If the simulator is a separate contract, override this function.
         */
        function oApp() external view virtual returns (address) {
            return address(this);
        }
        /**
         * @dev Sets the preCrime contract address.
         * @param _preCrime The address of the preCrime contract.
         */
        function setPreCrime(address _preCrime) public virtual onlyLZAdmin {
            OAppPreCrimeSimulatorStorage storage $ = _getOAppPreCrimeSimulatorStorage();
            $.preCrime = _preCrime;
            emit PreCrimeSet(_preCrime);
        }
        /**
         * @dev Interface for pre-crime simulations. Always reverts at the end with the simulation results.
         * @param _packets An array of InboundPacket objects representing received packets to be delivered.
         *
         * @dev WARNING: MUST revert at the end with the simulation results.
         * @dev Gives the preCrime implementation the ability to mock sending packets to the lzReceive function,
         * WITHOUT actually executing them.
         */
        function lzReceiveAndRevert(InboundPacket[] calldata _packets) public payable virtual {
            for (uint256 i = 0; i < _packets.length; i++) {
                InboundPacket calldata packet = _packets[i];
                // Ignore packets that are not from trusted peers.
                if (!isPeer(packet.origin.srcEid, packet.origin.sender)) continue;
                // @dev Because a verifier is calling this function, it doesnt have access to executor params:
                //  - address _executor
                //  - bytes calldata _extraData
                // preCrime will NOT work for OApps that rely on these two parameters inside of their _lzReceive().
                // They are instead stubbed to default values, address(0) and bytes("")
                // @dev Calling this.lzReceiveSimulate removes ability for assembly return 0 callstack exit,
                // which would cause the revert to be ignored.
                this.lzReceiveSimulate{value: packet.value}(
                    packet.origin, packet.guid, packet.message, packet.executor, packet.extraData
                );
            }
            // @dev Revert with the simulation results. msg.sender must implement IPreCrime.buildSimulationResult().
            revert SimulationResult(IPreCrime(msg.sender).buildSimulationResult());
        }
        /**
         * @dev Is effectively an internal function because msg.sender must be address(this).
         * Allows resetting the call stack for 'internal' calls.
         * @param _origin The origin information containing the source endpoint and sender address.
         *  - srcEid: The source chain endpoint ID.
         *  - sender: The sender address on the src chain.
         *  - nonce: The nonce of the message.
         * @param _guid The unique identifier of the packet.
         * @param _message The message payload of the packet.
         * @param _executor The executor address for the packet.
         * @param _extraData Additional data for the packet.
         */
        function lzReceiveSimulate(
            Origin calldata _origin,
            bytes32 _guid,
            bytes calldata _message,
            address _executor,
            bytes calldata _extraData
        ) external payable virtual {
            // @dev Ensure ONLY can be called 'internally'.
            if (msg.sender != address(this)) revert OnlySelf();
            _lzReceiveSimulate(_origin, _guid, _message, _executor, _extraData);
        }
        /**
         * @dev Internal function to handle the OAppPreCrimeSimulator simulated receive.
         * @param _origin The origin information.
         *  - srcEid: The source chain endpoint ID.
         *  - sender: The sender address from the src chain.
         *  - nonce: The nonce of the LayerZero message.
         * @param _guid The GUID of the LayerZero message.
         * @param _message The LayerZero message.
         * @param _executor The address of the off-chain executor.
         * @param _extraData Arbitrary data passed by the msg executor.
         *
         * @dev Enables the preCrime simulator to mock sending lzReceive() messages,
         * routes the msg down from the OAppPreCrimeSimulator, and back up to the OAppReceiver.
         */
        function _lzReceiveSimulate(
            Origin calldata _origin,
            bytes32 _guid,
            bytes calldata _message,
            address _executor,
            bytes calldata _extraData
        ) internal virtual;
        /**
         * @dev checks if the specified peer is considered 'trusted' by the OApp.
         * @param _eid The endpoint Id to check.
         * @param _peer The peer to check.
         * @return Whether the peer passed is considered 'trusted' by the OApp.
         */
        function isPeer(uint32 _eid, bytes32 _peer) public view virtual returns (bool);
    }
    // SPDX-License-Identifier: MIT
    pragma solidity ^0.8.20;
    import { MessagingReceipt, MessagingFee } from "@layerzerolabs/oapp-evm/contracts/oapp/OAppSender.sol";
    /**
     * @dev Struct representing token parameters for the OFT send() operation.
     */
    struct SendParam {
        uint32 dstEid; // Destination endpoint ID.
        bytes32 to; // Recipient address.
        uint256 amountLD; // Amount to send in local decimals.
        uint256 minAmountLD; // Minimum amount to send in local decimals.
        bytes extraOptions; // Additional options supplied by the caller to be used in the LayerZero message.
        bytes composeMsg; // The composed message for the send() operation.
        bytes oftCmd; // The OFT command to be executed, unused in default OFT implementations.
    }
    /**
     * @dev Struct representing OFT limit information.
     * @dev These amounts can change dynamically and are up the specific oft implementation.
     */
    struct OFTLimit {
        uint256 minAmountLD; // Minimum amount in local decimals that can be sent to the recipient.
        uint256 maxAmountLD; // Maximum amount in local decimals that can be sent to the recipient.
    }
    /**
     * @dev Struct representing OFT receipt information.
     */
    struct OFTReceipt {
        uint256 amountSentLD; // Amount of tokens ACTUALLY debited from the sender in local decimals.
        // @dev In non-default implementations, the amountReceivedLD COULD differ from this value.
        uint256 amountReceivedLD; // Amount of tokens to be received on the remote side.
    }
    /**
     * @dev Struct representing OFT fee details.
     * @dev Future proof mechanism to provide a standardized way to communicate fees to things like a UI.
     */
    struct OFTFeeDetail {
        int256 feeAmountLD; // Amount of the fee in local decimals.
        string description; // Description of the fee.
    }
    /**
     * @title IOFT
     * @dev Interface for the OftChain (OFT) token.
     * @dev Does not inherit ERC20 to accommodate usage by OFTAdapter as well.
     * @dev This specific interface ID is '0x02e49c2c'.
     */
    interface IOFT {
        // Custom error messages
        error InvalidLocalDecimals();
        error SlippageExceeded(uint256 amountLD, uint256 minAmountLD);
        // Events
        event OFTSent(
            bytes32 indexed guid, // GUID of the OFT message.
            uint32 dstEid, // Destination Endpoint ID.
            address indexed fromAddress, // Address of the sender on the src chain.
            uint256 amountSentLD, // Amount of tokens sent in local decimals.
            uint256 amountReceivedLD // Amount of tokens received in local decimals.
        );
        event OFTReceived(
            bytes32 indexed guid, // GUID of the OFT message.
            uint32 srcEid, // Source Endpoint ID.
            address indexed toAddress, // Address of the recipient on the dst chain.
            uint256 amountReceivedLD // Amount of tokens received in local decimals.
        );
        /**
         * @notice Retrieves interfaceID and the version of the OFT.
         * @return interfaceId The interface ID.
         * @return version The version.
         *
         * @dev interfaceId: This specific interface ID is '0x02e49c2c'.
         * @dev version: Indicates a cross-chain compatible msg encoding with other OFTs.
         * @dev If a new feature is added to the OFT cross-chain msg encoding, the version will be incremented.
         * ie. localOFT version(x,1) CAN send messages to remoteOFT version(x,1)
         */
        function oftVersion() external view returns (bytes4 interfaceId, uint64 version);
        /**
         * @notice Retrieves the address of the token associated with the OFT.
         * @return token The address of the ERC20 token implementation.
         */
        function token() external view returns (address);
        /**
         * @notice Indicates whether the OFT contract requires approval of the 'token()' to send.
         * @return requiresApproval Needs approval of the underlying token implementation.
         *
         * @dev Allows things like wallet implementers to determine integration requirements,
         * without understanding the underlying token implementation.
         */
        function approvalRequired() external view returns (bool);
        /**
         * @notice Retrieves the shared decimals of the OFT.
         * @return sharedDecimals The shared decimals of the OFT.
         */
        function sharedDecimals() external view returns (uint8);
        /**
         * @notice Provides the fee breakdown and settings data for an OFT. Unused in the default implementation.
         * @param _sendParam The parameters for the send operation.
         * @return limit The OFT limit information.
         * @return oftFeeDetails The details of OFT fees.
         * @return receipt The OFT receipt information.
         */
        function quoteOFT(
            SendParam calldata _sendParam
        ) external view returns (OFTLimit memory, OFTFeeDetail[] memory oftFeeDetails, OFTReceipt memory);
        /**
         * @notice Provides a quote for the send() operation.
         * @param _sendParam The parameters for the send() operation.
         * @param _payInLzToken Flag indicating whether the caller is paying in the LZ token.
         * @return fee The calculated LayerZero messaging fee from the send() operation.
         *
         * @dev MessagingFee: LayerZero msg fee
         *  - nativeFee: The native fee.
         *  - lzTokenFee: The lzToken fee.
         */
        function quoteSend(SendParam calldata _sendParam, bool _payInLzToken) external view returns (MessagingFee memory);
        /**
         * @notice Executes the send() operation.
         * @param _sendParam The parameters for the send operation.
         * @param _fee The fee information supplied by the caller.
         *      - nativeFee: The native fee.
         *      - lzTokenFee: The lzToken fee.
         * @param _refundAddress The address to receive any excess funds from fees etc. on the src.
         * @return receipt The LayerZero messaging receipt from the send() operation.
         * @return oftReceipt The OFT receipt information.
         *
         * @dev MessagingReceipt: LayerZero msg receipt
         *  - guid: The unique identifier for the sent message.
         *  - nonce: The nonce of the sent message.
         *  - fee: The LayerZero fee incurred for the message.
         */
        function send(
            SendParam calldata _sendParam,
            MessagingFee calldata _fee,
            address _refundAddress
        ) external payable returns (MessagingReceipt memory, OFTReceipt memory);
    }
    // SPDX-License-Identifier: MIT
    pragma solidity ^0.8.20;
    library OFTMsgCodec {
        // Offset constants for encoding and decoding OFT messages
        uint8 private constant SEND_TO_OFFSET = 32;
        uint8 private constant SEND_AMOUNT_SD_OFFSET = 40;
        /**
         * @dev Encodes an OFT LayerZero message.
         * @param _sendTo The recipient address.
         * @param _amountShared The amount in shared decimals.
         * @param _composeMsg The composed message.
         * @return _msg The encoded message.
         * @return hasCompose A boolean indicating whether the message has a composed payload.
         */
        function encode(
            bytes32 _sendTo,
            uint64 _amountShared,
            bytes memory _composeMsg
        ) internal view returns (bytes memory _msg, bool hasCompose) {
            hasCompose = _composeMsg.length > 0;
            // @dev Remote chains will want to know the composed function caller ie. msg.sender on the src.
            _msg = hasCompose
                ? abi.encodePacked(_sendTo, _amountShared, addressToBytes32(msg.sender), _composeMsg)
                : abi.encodePacked(_sendTo, _amountShared);
        }
        /**
         * @dev Checks if the OFT message is composed.
         * @param _msg The OFT message.
         * @return A boolean indicating whether the message is composed.
         */
        function isComposed(bytes calldata _msg) internal pure returns (bool) {
            return _msg.length > SEND_AMOUNT_SD_OFFSET;
        }
        /**
         * @dev Retrieves the recipient address from the OFT message.
         * @param _msg The OFT message.
         * @return The recipient address.
         */
        function sendTo(bytes calldata _msg) internal pure returns (bytes32) {
            return bytes32(_msg[:SEND_TO_OFFSET]);
        }
        /**
         * @dev Retrieves the amount in shared decimals from the OFT message.
         * @param _msg The OFT message.
         * @return The amount in shared decimals.
         */
        function amountSD(bytes calldata _msg) internal pure returns (uint64) {
            return uint64(bytes8(_msg[SEND_TO_OFFSET:SEND_AMOUNT_SD_OFFSET]));
        }
        /**
         * @dev Retrieves the composed message from the OFT message.
         * @param _msg The OFT message.
         * @return The composed message.
         */
        function composeMsg(bytes calldata _msg) internal pure returns (bytes memory) {
            return _msg[SEND_AMOUNT_SD_OFFSET:];
        }
        /**
         * @dev Converts an address to bytes32.
         * @param _addr The address to convert.
         * @return The bytes32 representation of the address.
         */
        function addressToBytes32(address _addr) internal pure returns (bytes32) {
            return bytes32(uint256(uint160(_addr)));
        }
        /**
         * @dev Converts bytes32 to an address.
         * @param _b The bytes32 value to convert.
         * @return The address representation of bytes32.
         */
        function bytes32ToAddress(bytes32 _b) internal pure returns (address) {
            return address(uint160(uint256(_b)));
        }
    }
    // SPDX-License-Identifier: MIT
    pragma solidity ^0.8.20;
    library OFTComposeMsgCodec {
        // Offset constants for decoding composed messages
        uint8 private constant NONCE_OFFSET = 8;
        uint8 private constant SRC_EID_OFFSET = 12;
        uint8 private constant AMOUNT_LD_OFFSET = 44;
        uint8 private constant COMPOSE_FROM_OFFSET = 76;
        /**
         * @dev Encodes a OFT composed message.
         * @param _nonce The nonce value.
         * @param _srcEid The source endpoint ID.
         * @param _amountLD The amount in local decimals.
         * @param _composeMsg The composed message.
         * @return _msg The encoded Composed message.
         */
        function encode(
            uint64 _nonce,
            uint32 _srcEid,
            uint256 _amountLD,
            bytes memory _composeMsg // 0x[composeFrom][composeMsg]
        ) internal pure returns (bytes memory _msg) {
            _msg = abi.encodePacked(_nonce, _srcEid, _amountLD, _composeMsg);
        }
        /**
         * @dev Retrieves the nonce for the composed message.
         * @param _msg The message.
         * @return The nonce value.
         */
        function nonce(bytes calldata _msg) internal pure returns (uint64) {
            return uint64(bytes8(_msg[:NONCE_OFFSET]));
        }
        /**
         * @dev Retrieves the source endpoint ID for the composed message.
         * @param _msg The message.
         * @return The source endpoint ID.
         */
        function srcEid(bytes calldata _msg) internal pure returns (uint32) {
            return uint32(bytes4(_msg[NONCE_OFFSET:SRC_EID_OFFSET]));
        }
        /**
         * @dev Retrieves the amount in local decimals from the composed message.
         * @param _msg The message.
         * @return The amount in local decimals.
         */
        function amountLD(bytes calldata _msg) internal pure returns (uint256) {
            return uint256(bytes32(_msg[SRC_EID_OFFSET:AMOUNT_LD_OFFSET]));
        }
        /**
         * @dev Retrieves the composeFrom value from the composed message.
         * @param _msg The message.
         * @return The composeFrom value.
         */
        function composeFrom(bytes calldata _msg) internal pure returns (bytes32) {
            return bytes32(_msg[AMOUNT_LD_OFFSET:COMPOSE_FROM_OFFSET]);
        }
        /**
         * @dev Retrieves the composed message.
         * @param _msg The message.
         * @return The composed message.
         */
        function composeMsg(bytes calldata _msg) internal pure returns (bytes memory) {
            return _msg[COMPOSE_FROM_OFFSET:];
        }
        /**
         * @dev Converts an address to bytes32.
         * @param _addr The address to convert.
         * @return The bytes32 representation of the address.
         */
        function addressToBytes32(address _addr) internal pure returns (bytes32) {
            return bytes32(uint256(uint160(_addr)));
        }
        /**
         * @dev Converts bytes32 to an address.
         * @param _b The bytes32 value to convert.
         * @return The address representation of bytes32.
         */
        function bytes32ToAddress(bytes32 _b) internal pure returns (address) {
            return address(uint160(uint256(_b)));
        }
    }
    // SPDX-License-Identifier: MIT
    // OpenZeppelin Contracts (last updated v5.2.0) (utils/Strings.sol)
    pragma solidity ^0.8.20;
    import {Math} from "./math/Math.sol";
    import {SafeCast} from "./math/SafeCast.sol";
    import {SignedMath} from "./math/SignedMath.sol";
    /**
     * @dev String operations.
     */
    library Strings {
        using SafeCast for *;
        bytes16 private constant HEX_DIGITS = "0123456789abcdef";
        uint8 private constant ADDRESS_LENGTH = 20;
        /**
         * @dev The `value` string doesn't fit in the specified `length`.
         */
        error StringsInsufficientHexLength(uint256 value, uint256 length);
        /**
         * @dev The string being parsed contains characters that are not in scope of the given base.
         */
        error StringsInvalidChar();
        /**
         * @dev The string being parsed is not a properly formatted address.
         */
        error StringsInvalidAddressFormat();
        /**
         * @dev Converts a `uint256` to its ASCII `string` decimal representation.
         */
        function toString(uint256 value) internal pure returns (string memory) {
            unchecked {
                uint256 length = Math.log10(value) + 1;
                string memory buffer = new string(length);
                uint256 ptr;
                assembly ("memory-safe") {
                    ptr := add(buffer, add(32, length))
                }
                while (true) {
                    ptr--;
                    assembly ("memory-safe") {
                        mstore8(ptr, byte(mod(value, 10), HEX_DIGITS))
                    }
                    value /= 10;
                    if (value == 0) break;
                }
                return buffer;
            }
        }
        /**
         * @dev Converts a `int256` to its ASCII `string` decimal representation.
         */
        function toStringSigned(int256 value) internal pure returns (string memory) {
            return string.concat(value < 0 ? "-" : "", toString(SignedMath.abs(value)));
        }
        /**
         * @dev Converts a `uint256` to its ASCII `string` hexadecimal representation.
         */
        function toHexString(uint256 value) internal pure returns (string memory) {
            unchecked {
                return toHexString(value, Math.log256(value) + 1);
            }
        }
        /**
         * @dev Converts a `uint256` to its ASCII `string` hexadecimal representation with fixed length.
         */
        function toHexString(uint256 value, uint256 length) internal pure returns (string memory) {
            uint256 localValue = value;
            bytes memory buffer = new bytes(2 * length + 2);
            buffer[0] = "0";
            buffer[1] = "x";
            for (uint256 i = 2 * length + 1; i > 1; --i) {
                buffer[i] = HEX_DIGITS[localValue & 0xf];
                localValue >>= 4;
            }
            if (localValue != 0) {
                revert StringsInsufficientHexLength(value, length);
            }
            return string(buffer);
        }
        /**
         * @dev Converts an `address` with fixed length of 20 bytes to its not checksummed ASCII `string` hexadecimal
         * representation.
         */
        function toHexString(address addr) internal pure returns (string memory) {
            return toHexString(uint256(uint160(addr)), ADDRESS_LENGTH);
        }
        /**
         * @dev Converts an `address` with fixed length of 20 bytes to its checksummed ASCII `string` hexadecimal
         * representation, according to EIP-55.
         */
        function toChecksumHexString(address addr) internal pure returns (string memory) {
            bytes memory buffer = bytes(toHexString(addr));
            // hash the hex part of buffer (skip length + 2 bytes, length 40)
            uint256 hashValue;
            assembly ("memory-safe") {
                hashValue := shr(96, keccak256(add(buffer, 0x22), 40))
            }
            for (uint256 i = 41; i > 1; --i) {
                // possible values for buffer[i] are 48 (0) to 57 (9) and 97 (a) to 102 (f)
                if (hashValue & 0xf > 7 && uint8(buffer[i]) > 96) {
                    // case shift by xoring with 0x20
                    buffer[i] ^= 0x20;
                }
                hashValue >>= 4;
            }
            return string(buffer);
        }
        /**
         * @dev Returns true if the two strings are equal.
         */
        function equal(string memory a, string memory b) internal pure returns (bool) {
            return bytes(a).length == bytes(b).length && keccak256(bytes(a)) == keccak256(bytes(b));
        }
        /**
         * @dev Parse a decimal string and returns the value as a `uint256`.
         *
         * Requirements:
         * - The string must be formatted as `[0-9]*`
         * - The result must fit into an `uint256` type
         */
        function parseUint(string memory input) internal pure returns (uint256) {
            return parseUint(input, 0, bytes(input).length);
        }
        /**
         * @dev Variant of {parseUint} that parses a substring of `input` located between position `begin` (included) and
         * `end` (excluded).
         *
         * Requirements:
         * - The substring must be formatted as `[0-9]*`
         * - The result must fit into an `uint256` type
         */
        function parseUint(string memory input, uint256 begin, uint256 end) internal pure returns (uint256) {
            (bool success, uint256 value) = tryParseUint(input, begin, end);
            if (!success) revert StringsInvalidChar();
            return value;
        }
        /**
         * @dev Variant of {parseUint-string} that returns false if the parsing fails because of an invalid character.
         *
         * NOTE: This function will revert if the result does not fit in a `uint256`.
         */
        function tryParseUint(string memory input) internal pure returns (bool success, uint256 value) {
            return _tryParseUintUncheckedBounds(input, 0, bytes(input).length);
        }
        /**
         * @dev Variant of {parseUint-string-uint256-uint256} that returns false if the parsing fails because of an invalid
         * character.
         *
         * NOTE: This function will revert if the result does not fit in a `uint256`.
         */
        function tryParseUint(
            string memory input,
            uint256 begin,
            uint256 end
        ) internal pure returns (bool success, uint256 value) {
            if (end > bytes(input).length || begin > end) return (false, 0);
            return _tryParseUintUncheckedBounds(input, begin, end);
        }
        /**
         * @dev Implementation of {tryParseUint} that does not check bounds. Caller should make sure that
         * `begin <= end <= input.length`. Other inputs would result in undefined behavior.
         */
        function _tryParseUintUncheckedBounds(
            string memory input,
            uint256 begin,
            uint256 end
        ) private pure returns (bool success, uint256 value) {
            bytes memory buffer = bytes(input);
            uint256 result = 0;
            for (uint256 i = begin; i < end; ++i) {
                uint8 chr = _tryParseChr(bytes1(_unsafeReadBytesOffset(buffer, i)));
                if (chr > 9) return (false, 0);
                result *= 10;
                result += chr;
            }
            return (true, result);
        }
        /**
         * @dev Parse a decimal string and returns the value as a `int256`.
         *
         * Requirements:
         * - The string must be formatted as `[-+]?[0-9]*`
         * - The result must fit in an `int256` type.
         */
        function parseInt(string memory input) internal pure returns (int256) {
            return parseInt(input, 0, bytes(input).length);
        }
        /**
         * @dev Variant of {parseInt-string} that parses a substring of `input` located between position `begin` (included) and
         * `end` (excluded).
         *
         * Requirements:
         * - The substring must be formatted as `[-+]?[0-9]*`
         * - The result must fit in an `int256` type.
         */
        function parseInt(string memory input, uint256 begin, uint256 end) internal pure returns (int256) {
            (bool success, int256 value) = tryParseInt(input, begin, end);
            if (!success) revert StringsInvalidChar();
            return value;
        }
        /**
         * @dev Variant of {parseInt-string} that returns false if the parsing fails because of an invalid character or if
         * the result does not fit in a `int256`.
         *
         * NOTE: This function will revert if the absolute value of the result does not fit in a `uint256`.
         */
        function tryParseInt(string memory input) internal pure returns (bool success, int256 value) {
            return _tryParseIntUncheckedBounds(input, 0, bytes(input).length);
        }
        uint256 private constant ABS_MIN_INT256 = 2 ** 255;
        /**
         * @dev Variant of {parseInt-string-uint256-uint256} that returns false if the parsing fails because of an invalid
         * character or if the result does not fit in a `int256`.
         *
         * NOTE: This function will revert if the absolute value of the result does not fit in a `uint256`.
         */
        function tryParseInt(
            string memory input,
            uint256 begin,
            uint256 end
        ) internal pure returns (bool success, int256 value) {
            if (end > bytes(input).length || begin > end) return (false, 0);
            return _tryParseIntUncheckedBounds(input, begin, end);
        }
        /**
         * @dev Implementation of {tryParseInt} that does not check bounds. Caller should make sure that
         * `begin <= end <= input.length`. Other inputs would result in undefined behavior.
         */
        function _tryParseIntUncheckedBounds(
            string memory input,
            uint256 begin,
            uint256 end
        ) private pure returns (bool success, int256 value) {
            bytes memory buffer = bytes(input);
            // Check presence of a negative sign.
            bytes1 sign = begin == end ? bytes1(0) : bytes1(_unsafeReadBytesOffset(buffer, begin)); // don't do out-of-bound (possibly unsafe) read if sub-string is empty
            bool positiveSign = sign == bytes1("+");
            bool negativeSign = sign == bytes1("-");
            uint256 offset = (positiveSign || negativeSign).toUint();
            (bool absSuccess, uint256 absValue) = tryParseUint(input, begin + offset, end);
            if (absSuccess && absValue < ABS_MIN_INT256) {
                return (true, negativeSign ? -int256(absValue) : int256(absValue));
            } else if (absSuccess && negativeSign && absValue == ABS_MIN_INT256) {
                return (true, type(int256).min);
            } else return (false, 0);
        }
        /**
         * @dev Parse a hexadecimal string (with or without "0x" prefix), and returns the value as a `uint256`.
         *
         * Requirements:
         * - The string must be formatted as `(0x)?[0-9a-fA-F]*`
         * - The result must fit in an `uint256` type.
         */
        function parseHexUint(string memory input) internal pure returns (uint256) {
            return parseHexUint(input, 0, bytes(input).length);
        }
        /**
         * @dev Variant of {parseHexUint} that parses a substring of `input` located between position `begin` (included) and
         * `end` (excluded).
         *
         * Requirements:
         * - The substring must be formatted as `(0x)?[0-9a-fA-F]*`
         * - The result must fit in an `uint256` type.
         */
        function parseHexUint(string memory input, uint256 begin, uint256 end) internal pure returns (uint256) {
            (bool success, uint256 value) = tryParseHexUint(input, begin, end);
            if (!success) revert StringsInvalidChar();
            return value;
        }
        /**
         * @dev Variant of {parseHexUint-string} that returns false if the parsing fails because of an invalid character.
         *
         * NOTE: This function will revert if the result does not fit in a `uint256`.
         */
        function tryParseHexUint(string memory input) internal pure returns (bool success, uint256 value) {
            return _tryParseHexUintUncheckedBounds(input, 0, bytes(input).length);
        }
        /**
         * @dev Variant of {parseHexUint-string-uint256-uint256} that returns false if the parsing fails because of an
         * invalid character.
         *
         * NOTE: This function will revert if the result does not fit in a `uint256`.
         */
        function tryParseHexUint(
            string memory input,
            uint256 begin,
            uint256 end
        ) internal pure returns (bool success, uint256 value) {
            if (end > bytes(input).length || begin > end) return (false, 0);
            return _tryParseHexUintUncheckedBounds(input, begin, end);
        }
        /**
         * @dev Implementation of {tryParseHexUint} that does not check bounds. Caller should make sure that
         * `begin <= end <= input.length`. Other inputs would result in undefined behavior.
         */
        function _tryParseHexUintUncheckedBounds(
            string memory input,
            uint256 begin,
            uint256 end
        ) private pure returns (bool success, uint256 value) {
            bytes memory buffer = bytes(input);
            // skip 0x prefix if present
            bool hasPrefix = (end > begin + 1) && bytes2(_unsafeReadBytesOffset(buffer, begin)) == bytes2("0x"); // don't do out-of-bound (possibly unsafe) read if sub-string is empty
            uint256 offset = hasPrefix.toUint() * 2;
            uint256 result = 0;
            for (uint256 i = begin + offset; i < end; ++i) {
                uint8 chr = _tryParseChr(bytes1(_unsafeReadBytesOffset(buffer, i)));
                if (chr > 15) return (false, 0);
                result *= 16;
                unchecked {
                    // Multiplying by 16 is equivalent to a shift of 4 bits (with additional overflow check).
                    // This guaratees that adding a value < 16 will not cause an overflow, hence the unchecked.
                    result += chr;
                }
            }
            return (true, result);
        }
        /**
         * @dev Parse a hexadecimal string (with or without "0x" prefix), and returns the value as an `address`.
         *
         * Requirements:
         * - The string must be formatted as `(0x)?[0-9a-fA-F]{40}`
         */
        function parseAddress(string memory input) internal pure returns (address) {
            return parseAddress(input, 0, bytes(input).length);
        }
        /**
         * @dev Variant of {parseAddress} that parses a substring of `input` located between position `begin` (included) and
         * `end` (excluded).
         *
         * Requirements:
         * - The substring must be formatted as `(0x)?[0-9a-fA-F]{40}`
         */
        function parseAddress(string memory input, uint256 begin, uint256 end) internal pure returns (address) {
            (bool success, address value) = tryParseAddress(input, begin, end);
            if (!success) revert StringsInvalidAddressFormat();
            return value;
        }
        /**
         * @dev Variant of {parseAddress-string} that returns false if the parsing fails because the input is not a properly
         * formatted address. See {parseAddress} requirements.
         */
        function tryParseAddress(string memory input) internal pure returns (bool success, address value) {
            return tryParseAddress(input, 0, bytes(input).length);
        }
        /**
         * @dev Variant of {parseAddress-string-uint256-uint256} that returns false if the parsing fails because input is not a properly
         * formatted address. See {parseAddress} requirements.
         */
        function tryParseAddress(
            string memory input,
            uint256 begin,
            uint256 end
        ) internal pure returns (bool success, address value) {
            if (end > bytes(input).length || begin > end) return (false, address(0));
            bool hasPrefix = (end > begin + 1) && bytes2(_unsafeReadBytesOffset(bytes(input), begin)) == bytes2("0x"); // don't do out-of-bound (possibly unsafe) read if sub-string is empty
            uint256 expectedLength = 40 + hasPrefix.toUint() * 2;
            // check that input is the correct length
            if (end - begin == expectedLength) {
                // length guarantees that this does not overflow, and value is at most type(uint160).max
                (bool s, uint256 v) = _tryParseHexUintUncheckedBounds(input, begin, end);
                return (s, address(uint160(v)));
            } else {
                return (false, address(0));
            }
        }
        function _tryParseChr(bytes1 chr) private pure returns (uint8) {
            uint8 value = uint8(chr);
            // Try to parse `chr`:
            // - Case 1: [0-9]
            // - Case 2: [a-f]
            // - Case 3: [A-F]
            // - otherwise not supported
            unchecked {
                if (value > 47 && value < 58) value -= 48;
                else if (value > 96 && value < 103) value -= 87;
                else if (value > 64 && value < 71) value -= 55;
                else return type(uint8).max;
            }
            return value;
        }
        /**
         * @dev Reads a bytes32 from a bytes array without bounds checking.
         *
         * NOTE: making this function internal would mean it could be used with memory unsafe offset, and marking the
         * assembly block as such would prevent some optimizations.
         */
        function _unsafeReadBytesOffset(bytes memory buffer, uint256 offset) private pure returns (bytes32 value) {
            // This is not memory safe in the general case, but all calls to this private function are within bounds.
            assembly ("memory-safe") {
                value := mload(add(buffer, add(0x20, offset)))
            }
        }
    }
    // SPDX-License-Identifier: MIT
    pragma solidity ^0.8.20;
    import { SafeERC20, IERC20 } from "@openzeppelin/contracts/token/ERC20/utils/SafeERC20.sol";
    import { MessagingParams, MessagingFee, MessagingReceipt } from "@layerzerolabs/lz-evm-protocol-v2/contracts/interfaces/ILayerZeroEndpointV2.sol";
    import { OAppCoreUpgradeable } from "./OAppCoreUpgradeable.sol";
    /**
     * @title OAppSender
     * @dev Abstract contract implementing the OAppSender functionality for sending messages to a LayerZero endpoint.
     */
    abstract contract OAppSenderUpgradeable is OAppCoreUpgradeable {
        using SafeERC20 for IERC20;
        // Custom error messages
        error NotEnoughNative(uint256 msgValue);
        error LzTokenUnavailable();
        // @dev The version of the OAppSender implementation.
        // @dev Version is bumped when changes are made to this contract.
        uint64 internal constant SENDER_VERSION = 1;
        /**
         * @param _delegate The delegate capable of making OApp configurations inside of the endpoint.
         * @dev Ownable is not initialized here on purpose. It should be initialized in the child contract to
         * accommodate the different version of Ownable.
         */
        function __OAppSender_init(address _delegate) internal onlyInitializing {
            __OAppCore_init(_delegate);
        }
        function __OAppSender_init_unchained() internal onlyInitializing {}
        /**
         * @notice Retrieves the OApp version information.
         * @return senderVersion The version of the OAppSender.sol contract.
         * @return receiverVersion The version of the OAppReceiver.sol contract.
         *
         * @dev Providing 0 as the default for OAppReceiver version. Indicates that the OAppReceiver is not implemented.
         * ie. this is a SEND only OApp.
         * @dev If the OApp uses both OAppSender and OAppReceiver, then this needs to be override returning the correct versions
         */
        function oAppVersion() public view virtual returns (uint64 senderVersion, uint64 receiverVersion) {
            return (SENDER_VERSION, 0);
        }
        /**
         * @dev Internal function to interact with the LayerZero EndpointV2.quote() for fee calculation.
         * @param _dstEid The destination endpoint ID.
         * @param _message The message payload.
         * @param _options Additional options for the message.
         * @param _payInLzToken Flag indicating whether to pay the fee in LZ tokens.
         * @return fee The calculated MessagingFee for the message.
         *      - nativeFee: The native fee for the message.
         *      - lzTokenFee: The LZ token fee for the message.
         */
        function _quote(
            uint32 _dstEid,
            bytes memory _message,
            bytes memory _options,
            bool _payInLzToken
        ) internal view virtual returns (MessagingFee memory fee) {
            return
                endpoint.quote(
                    MessagingParams(_dstEid, _getPeerOrRevert(_dstEid), _message, _options, _payInLzToken),
                    address(this)
                );
        }
        /**
         * @dev Internal function to interact with the LayerZero EndpointV2.send() for sending a message.
         * @param _dstEid The destination endpoint ID.
         * @param _message The message payload.
         * @param _options Additional options for the message.
         * @param _fee The calculated LayerZero fee for the message.
         *      - nativeFee: The native fee.
         *      - lzTokenFee: The lzToken fee.
         * @param _refundAddress The address to receive any excess fee values sent to the endpoint.
         * @return receipt The receipt for the sent message.
         *      - guid: The unique identifier for the sent message.
         *      - nonce: The nonce of the sent message.
         *      - fee: The LayerZero fee incurred for the message.
         */
        function _lzSend(
            uint32 _dstEid,
            bytes memory _message,
            bytes memory _options,
            MessagingFee memory _fee,
            address _refundAddress
        ) internal virtual returns (MessagingReceipt memory receipt) {
            // @dev Push corresponding fees to the endpoint, any excess is sent back to the _refundAddress from the endpoint.
            uint256 messageValue = _payNative(_fee.nativeFee);
            if (_fee.lzTokenFee > 0) _payLzToken(_fee.lzTokenFee);
            return
                // solhint-disable-next-line check-send-result
                endpoint.send{ value: messageValue }(
                    MessagingParams(_dstEid, _getPeerOrRevert(_dstEid), _message, _options, _fee.lzTokenFee > 0),
                    _refundAddress
                );
        }
        /**
         * @dev Internal function to pay the native fee associated with the message.
         * @param _nativeFee The native fee to be paid.
         * @return nativeFee The amount of native currency paid.
         *
         * @dev If the OApp needs to initiate MULTIPLE LayerZero messages in a single transaction,
         * this will need to be overridden because msg.value would contain multiple lzFees.
         * @dev Should be overridden in the event the LayerZero endpoint requires a different native currency.
         * @dev Some EVMs use an ERC20 as a method for paying transactions/gasFees.
         * @dev The endpoint is EITHER/OR, ie. it will NOT support both types of native payment at a time.
         */
        function _payNative(uint256 _nativeFee) internal virtual returns (uint256 nativeFee) {
            if (msg.value != _nativeFee) revert NotEnoughNative(msg.value);
            return _nativeFee;
        }
        /**
         * @dev Internal function to pay the LZ token fee associated with the message.
         * @param _lzTokenFee The LZ token fee to be paid.
         *
         * @dev If the caller is trying to pay in the specified lzToken, then the lzTokenFee is passed to the endpoint.
         * @dev Any excess sent, is passed back to the specified _refundAddress in the _lzSend().
         */
        function _payLzToken(uint256 _lzTokenFee) internal virtual {
            // @dev Cannot cache the token because it is not immutable in the endpoint.
            address lzToken = endpoint.lzToken();
            if (lzToken == address(0)) revert LzTokenUnavailable();
            // Pay LZ token fee by sending tokens to the endpoint.
            IERC20(lzToken).safeTransferFrom(msg.sender, address(endpoint), _lzTokenFee);
        }
    }
    // SPDX-License-Identifier: MIT
    pragma solidity ^0.8.20;
    import { IOAppReceiver, Origin } from "@layerzerolabs/oapp-evm/contracts/oapp/interfaces/IOAppReceiver.sol";
    import { OAppCoreUpgradeable } from "./OAppCoreUpgradeable.sol";
    /**
     * @title OAppReceiver
     * @dev Abstract contract implementing the ILayerZeroReceiver interface and extending OAppCore for OApp receivers.
     */
    abstract contract OAppReceiverUpgradeable is IOAppReceiver, OAppCoreUpgradeable {
        // Custom error message for when the caller is not the registered endpoint/
        error OnlyEndpoint(address addr);
        // @dev The version of the OAppReceiver implementation.
        // @dev Version is bumped when changes are made to this contract.
        uint64 internal constant RECEIVER_VERSION = 2;
        /**
         * @param _delegate The delegate capable of making OApp configurations inside of the endpoint.
         * @dev Ownable is not initialized here on purpose. It should be initialized in the child contract to
         * accommodate the different version of Ownable.
         */
        function __OAppReceiver_init(address _delegate) internal onlyInitializing {
            __OAppCore_init(_delegate);
        }
        function __OAppReceiver_init_unchained() internal onlyInitializing {}
        /**
         * @notice Retrieves the OApp version information.
         * @return senderVersion The version of the OAppSender.sol contract.
         * @return receiverVersion The version of the OAppReceiver.sol contract.
         *
         * @dev Providing 0 as the default for OAppSender version. Indicates that the OAppSender is not implemented.
         * ie. this is a RECEIVE only OApp.
         * @dev If the OApp uses both OAppSender and OAppReceiver, then this needs to be override returning the correct versions.
         */
        function oAppVersion() public view virtual returns (uint64 senderVersion, uint64 receiverVersion) {
            return (0, RECEIVER_VERSION);
        }
        /**
         * @notice Indicates whether an address is an approved composeMsg sender to the Endpoint.
         * @dev _origin The origin information containing the source endpoint and sender address.
         *  - srcEid: The source chain endpoint ID.
         *  - sender: The sender address on the src chain.
         *  - nonce: The nonce of the message.
         * @dev _message The lzReceive payload.
         * @param _sender The sender address.
         * @return isSender Is a valid sender.
         *
         * @dev Applications can optionally choose to implement separate composeMsg senders that are NOT the bridging layer.
         * @dev The default sender IS the OAppReceiver implementer.
         */
        function isComposeMsgSender(
            Origin calldata /*_origin*/,
            bytes calldata /*_message*/,
            address _sender
        ) public view virtual returns (bool) {
            return _sender == address(this);
        }
        /**
         * @notice Checks if the path initialization is allowed based on the provided origin.
         * @param origin The origin information containing the source endpoint and sender address.
         * @return Whether the path has been initialized.
         *
         * @dev This indicates to the endpoint that the OApp has enabled msgs for this particular path to be received.
         * @dev This defaults to assuming if a peer has been set, its initialized.
         * Can be overridden by the OApp if there is other logic to determine this.
         */
        function allowInitializePath(Origin calldata origin) public view virtual returns (bool) {
            return peers(origin.srcEid) == origin.sender;
        }
        /**
         * @notice Retrieves the next nonce for a given source endpoint and sender address.
         * @dev _srcEid The source endpoint ID.
         * @dev _sender The sender address.
         * @return nonce The next nonce.
         *
         * @dev The path nonce starts from 1. If 0 is returned it means that there is NO nonce ordered enforcement.
         * @dev Is required by the off-chain executor to determine the OApp expects msg execution is ordered.
         * @dev This is also enforced by the OApp.
         * @dev By default this is NOT enabled. ie. nextNonce is hardcoded to return 0.
         */
        function nextNonce(uint32, /*_srcEid*/ bytes32 /*_sender*/) public view virtual returns (uint64 nonce) {
            return 0;
        }
        /**
         * @dev Entry point for receiving messages or packets from the endpoint.
         * @param _origin The origin information containing the source endpoint and sender address.
         *  - srcEid: The source chain endpoint ID.
         *  - sender: The sender address on the src chain.
         *  - nonce: The nonce of the message.
         * @param _guid The unique identifier for the received LayerZero message.
         * @param _message The payload of the received message.
         * @param _executor The address of the executor for the received message.
         * @param _extraData Additional arbitrary data provided by the corresponding executor.
         *
         * @dev Entry point for receiving msg/packet from the LayerZero endpoint.
         */
        function lzReceive(
            Origin calldata _origin,
            bytes32 _guid,
            bytes calldata _message,
            address _executor,
            bytes calldata _extraData
        ) public payable virtual {
            // Ensures that only the endpoint can attempt to lzReceive() messages to this OApp.
            if (address(endpoint) != msg.sender) revert OnlyEndpoint(msg.sender);
            // Ensure that the sender matches the expected peer for the source endpoint.
            if (_getPeerOrRevert(_origin.srcEid) != _origin.sender) revert OnlyPeer(_origin.srcEid, _origin.sender);
            // Call the internal OApp implementation of lzReceive.
            _lzReceive(_origin, _guid, _message, _executor, _extraData);
        }
        /**
         * @dev Internal function to implement lzReceive logic without needing to copy the basic parameter validation.
         */
        function _lzReceive(
            Origin calldata _origin,
            bytes32 _guid,
            bytes calldata _message,
            address _executor,
            bytes calldata _extraData
        ) internal virtual;
    }
    // SPDX-License-Identifier: MIT
    pragma solidity ^0.8.20;
    import {OnlyLZAdmin} from "../OnlyLZAdmin.sol";
    import {Initializable} from "@openzeppelin/contracts-upgradeable/proxy/utils/Initializable.sol";
    import {IOAppCore, ILayerZeroEndpointV2} from "@layerzerolabs/oapp-evm/contracts/oapp/interfaces/IOAppCore.sol";
    /**
     * @title OAppCore
     * @dev Abstract contract implementing the IOAppCore interface with basic OApp configurations.
     */
    abstract contract OAppCoreUpgradeable is IOAppCore, Initializable, OnlyLZAdmin {
        struct OAppCoreStorage {
            mapping(uint32 => bytes32) peers;
        }
        // keccak256(abi.encode(uint256(keccak256("layerzerov2.storage.oappcore")) - 1)) & ~bytes32(uint256(0xff))
        bytes32 private constant OAPP_CORE_STORAGE_LOCATION =
            0x72ab1bc1039b79dc4724ffca13de82c96834302d3c7e0d4252232d4b2dd8f900;
        function _getOAppCoreStorage() internal pure returns (OAppCoreStorage storage $) {
            assembly {
                $.slot := OAPP_CORE_STORAGE_LOCATION
            }
        }
        // The LayerZero endpoint associated with the given OApp
        ILayerZeroEndpointV2 public immutable endpoint;
        /**
         * @dev Constructor to initialize the OAppCore with the provided endpoint and delegate.
         * @param _endpoint The address of the LOCAL Layer Zero endpoint.
         */
        constructor(address _endpoint) {
            endpoint = ILayerZeroEndpointV2(_endpoint);
        }
        /**
         * @dev Initializes the OAppCore with the provided delegate.
         * @param _delegate The delegate capable of making OApp configurations inside of the endpoint.
         *
         * @dev The delegate typically should be set as the owner of the contract.
         * @dev Ownable is not initialized here on purpose. It should be initialized in the child contract to
         * accommodate the different version of Ownable.
         */
        function __OAppCore_init(address _delegate) internal onlyInitializing {
            __OAppCore_init_unchained(_delegate);
        }
        function __OAppCore_init_unchained(address _delegate) internal onlyInitializing {
            if (_delegate == address(0)) revert InvalidDelegate();
            endpoint.setDelegate(_delegate);
        }
        /**
         * @notice Returns the peer address (OApp instance) associated with a specific endpoint.
         * @param _eid The endpoint ID.
         * @return peer The address of the peer associated with the specified endpoint.
         */
        function peers(uint32 _eid) public view override returns (bytes32) {
            OAppCoreStorage storage $ = _getOAppCoreStorage();
            return $.peers[_eid];
        }
        /**
         * @notice Sets the peer address (OApp instance) for a corresponding endpoint.
         * @param _eid The endpoint ID.
         * @param _peer The address of the peer to be associated with the corresponding endpoint.
         *
         * @dev Only the owner/admin of the OApp can call this function.
         * @dev Indicates that the peer is trusted to send LayerZero messages to this OApp.
         * @dev Set this to bytes32(0) to remove the peer address.
         * @dev Peer is a bytes32 to accommodate non-evm chains.
         */
        function setPeer(uint32 _eid, bytes32 _peer) public virtual onlyLZAdmin {
            OAppCoreStorage storage $ = _getOAppCoreStorage();
            $.peers[_eid] = _peer;
            emit PeerSet(_eid, _peer);
        }
        /**
         * @notice Internal function to get the peer address associated with a specific endpoint; reverts if NOT set.
         * ie. the peer is set to bytes32(0).
         * @param _eid The endpoint ID.
         * @return peer The address of the peer associated with the specified endpoint.
         */
        function _getPeerOrRevert(uint32 _eid) internal view virtual returns (bytes32) {
            OAppCoreStorage storage $ = _getOAppCoreStorage();
            bytes32 peer = $.peers[_eid];
            if (peer == bytes32(0)) revert NoPeer(_eid);
            return peer;
        }
        /**
         * @notice Sets the delegate address for the OApp.
         * @param _delegate The address of the delegate to be set.
         *
         * @dev Only the owner/admin of the OApp can call this function.
         * @dev Provides the ability for a delegate to set configs, on behalf of the OApp, directly on the Endpoint contract.
         */
        function setDelegate(address _delegate) public onlyLZAdmin {
            endpoint.setDelegate(_delegate);
        }
    }
    // SPDX-License-Identifier: MIT
    pragma solidity ^0.8.20;
    /**
     * @dev Struct representing enforced option parameters.
     */
    struct EnforcedOptionParam {
        uint32 eid; // Endpoint ID
        uint16 msgType; // Message Type
        bytes options; // Additional options
    }
    /**
     * @title IOAppOptionsType3
     * @dev Interface for the OApp with Type 3 Options, allowing the setting and combining of enforced options.
     */
    interface IOAppOptionsType3 {
        // Custom error message for invalid options
        error InvalidOptions(bytes options);
        // Event emitted when enforced options are set
        event EnforcedOptionSet(EnforcedOptionParam[] _enforcedOptions);
        /**
         * @notice Sets enforced options for specific endpoint and message type combinations.
         * @param _enforcedOptions An array of EnforcedOptionParam structures specifying enforced options.
         */
        function setEnforcedOptions(EnforcedOptionParam[] calldata _enforcedOptions) external;
        /**
         * @notice Combines options for a given endpoint and message type.
         * @param _eid The endpoint ID.
         * @param _msgType The OApp message type.
         * @param _extraOptions Additional options passed by the caller.
         * @return options The combination of caller specified options AND enforced options.
         */
        function combineOptions(
            uint32 _eid,
            uint16 _msgType,
            bytes calldata _extraOptions
        ) external view returns (bytes memory options);
    }
    // SPDX-License-Identifier: MIT
    pragma solidity ^0.8.20;
    struct PreCrimePeer {
        uint32 eid;
        bytes32 preCrime;
        bytes32 oApp;
    }
    // TODO not done yet
    interface IPreCrime {
        error OnlyOffChain();
        // for simulate()
        error PacketOversize(uint256 max, uint256 actual);
        error PacketUnsorted();
        error SimulationFailed(bytes reason);
        // for preCrime()
        error SimulationResultNotFound(uint32 eid);
        error InvalidSimulationResult(uint32 eid, bytes reason);
        error CrimeFound(bytes crime);
        function getConfig(bytes[] calldata _packets, uint256[] calldata _packetMsgValues) external returns (bytes memory);
        function simulate(
            bytes[] calldata _packets,
            uint256[] calldata _packetMsgValues
        ) external payable returns (bytes memory);
        function buildSimulationResult() external view returns (bytes memory);
        function preCrime(
            bytes[] calldata _packets,
            uint256[] calldata _packetMsgValues,
            bytes[] calldata _simulations
        ) external;
        function version() external view returns (uint64 major, uint8 minor);
    }
    // SPDX-License-Identifier: MIT
    pragma solidity ^0.8.20;
    // @dev Import the Origin so it's exposed to OAppPreCrimeSimulator implementers.
    // solhint-disable-next-line no-unused-import
    import { InboundPacket, Origin } from "../libs/Packet.sol";
    /**
     * @title IOAppPreCrimeSimulator Interface
     * @dev Interface for the preCrime simulation functionality in an OApp.
     */
    interface IOAppPreCrimeSimulator {
        // @dev simulation result used in PreCrime implementation
        error SimulationResult(bytes result);
        error OnlySelf();
        /**
         * @dev Emitted when the preCrime contract address is set.
         * @param preCrimeAddress The address of the preCrime contract.
         */
        event PreCrimeSet(address preCrimeAddress);
        /**
         * @dev Retrieves the address of the preCrime contract implementation.
         * @return The address of the preCrime contract.
         */
        function preCrime() external view returns (address);
        /**
         * @dev Retrieves the address of the OApp contract.
         * @return The address of the OApp contract.
         */
        function oApp() external view returns (address);
        /**
         * @dev Sets the preCrime contract address.
         * @param _preCrime The address of the preCrime contract.
         */
        function setPreCrime(address _preCrime) external;
        /**
         * @dev Mocks receiving a packet, then reverts with a series of data to infer the state/result.
         * @param _packets An array of LayerZero InboundPacket objects representing received packets.
         */
        function lzReceiveAndRevert(InboundPacket[] calldata _packets) external payable;
        /**
         * @dev checks if the specified peer is considered 'trusted' by the OApp.
         * @param _eid The endpoint Id to check.
         * @param _peer The peer to check.
         * @return Whether the peer passed is considered 'trusted' by the OApp.
         */
        function isPeer(uint32 _eid, bytes32 _peer) external view returns (bool);
    }
    // SPDX-License-Identifier: MIT
    pragma solidity ^0.8.20;
    import { SafeERC20, IERC20 } from "@openzeppelin/contracts/token/ERC20/utils/SafeERC20.sol";
    import { MessagingParams, MessagingFee, MessagingReceipt } from "@layerzerolabs/lz-evm-protocol-v2/contracts/interfaces/ILayerZeroEndpointV2.sol";
    import { OAppCore } from "./OAppCore.sol";
    /**
     * @title OAppSender
     * @dev Abstract contract implementing the OAppSender functionality for sending messages to a LayerZero endpoint.
     */
    abstract contract OAppSender is OAppCore {
        using SafeERC20 for IERC20;
        // Custom error messages
        error NotEnoughNative(uint256 msgValue);
        error LzTokenUnavailable();
        // @dev The version of the OAppSender implementation.
        // @dev Version is bumped when changes are made to this contract.
        uint64 internal constant SENDER_VERSION = 1;
        /**
         * @notice Retrieves the OApp version information.
         * @return senderVersion The version of the OAppSender.sol contract.
         * @return receiverVersion The version of the OAppReceiver.sol contract.
         *
         * @dev Providing 0 as the default for OAppReceiver version. Indicates that the OAppReceiver is not implemented.
         * ie. this is a SEND only OApp.
         * @dev If the OApp uses both OAppSender and OAppReceiver, then this needs to be override returning the correct versions
         */
        function oAppVersion() public view virtual returns (uint64 senderVersion, uint64 receiverVersion) {
            return (SENDER_VERSION, 0);
        }
        /**
         * @dev Internal function to interact with the LayerZero EndpointV2.quote() for fee calculation.
         * @param _dstEid The destination endpoint ID.
         * @param _message The message payload.
         * @param _options Additional options for the message.
         * @param _payInLzToken Flag indicating whether to pay the fee in LZ tokens.
         * @return fee The calculated MessagingFee for the message.
         *      - nativeFee: The native fee for the message.
         *      - lzTokenFee: The LZ token fee for the message.
         */
        function _quote(
            uint32 _dstEid,
            bytes memory _message,
            bytes memory _options,
            bool _payInLzToken
        ) internal view virtual returns (MessagingFee memory fee) {
            return
                endpoint.quote(
                    MessagingParams(_dstEid, _getPeerOrRevert(_dstEid), _message, _options, _payInLzToken),
                    address(this)
                );
        }
        /**
         * @dev Internal function to interact with the LayerZero EndpointV2.send() for sending a message.
         * @param _dstEid The destination endpoint ID.
         * @param _message The message payload.
         * @param _options Additional options for the message.
         * @param _fee The calculated LayerZero fee for the message.
         *      - nativeFee: The native fee.
         *      - lzTokenFee: The lzToken fee.
         * @param _refundAddress The address to receive any excess fee values sent to the endpoint.
         * @return receipt The receipt for the sent message.
         *      - guid: The unique identifier for the sent message.
         *      - nonce: The nonce of the sent message.
         *      - fee: The LayerZero fee incurred for the message.
         */
        function _lzSend(
            uint32 _dstEid,
            bytes memory _message,
            bytes memory _options,
            MessagingFee memory _fee,
            address _refundAddress
        ) internal virtual returns (MessagingReceipt memory receipt) {
            // @dev Push corresponding fees to the endpoint, any excess is sent back to the _refundAddress from the endpoint.
            uint256 messageValue = _payNative(_fee.nativeFee);
            if (_fee.lzTokenFee > 0) _payLzToken(_fee.lzTokenFee);
            return
                // solhint-disable-next-line check-send-result
                endpoint.send{ value: messageValue }(
                    MessagingParams(_dstEid, _getPeerOrRevert(_dstEid), _message, _options, _fee.lzTokenFee > 0),
                    _refundAddress
                );
        }
        /**
         * @dev Internal function to pay the native fee associated with the message.
         * @param _nativeFee The native fee to be paid.
         * @return nativeFee The amount of native currency paid.
         *
         * @dev If the OApp needs to initiate MULTIPLE LayerZero messages in a single transaction,
         * this will need to be overridden because msg.value would contain multiple lzFees.
         * @dev Should be overridden in the event the LayerZero endpoint requires a different native currency.
         * @dev Some EVMs use an ERC20 as a method for paying transactions/gasFees.
         * @dev The endpoint is EITHER/OR, ie. it will NOT support both types of native payment at a time.
         */
        function _payNative(uint256 _nativeFee) internal virtual returns (uint256 nativeFee) {
            if (msg.value != _nativeFee) revert NotEnoughNative(msg.value);
            return _nativeFee;
        }
        /**
         * @dev Internal function to pay the LZ token fee associated with the message.
         * @param _lzTokenFee The LZ token fee to be paid.
         *
         * @dev If the caller is trying to pay in the specified lzToken, then the lzTokenFee is passed to the endpoint.
         * @dev Any excess sent, is passed back to the specified _refundAddress in the _lzSend().
         */
        function _payLzToken(uint256 _lzTokenFee) internal virtual {
            // @dev Cannot cache the token because it is not immutable in the endpoint.
            address lzToken = endpoint.lzToken();
            if (lzToken == address(0)) revert LzTokenUnavailable();
            // Pay LZ token fee by sending tokens to the endpoint.
            IERC20(lzToken).safeTransferFrom(msg.sender, address(endpoint), _lzTokenFee);
        }
    }
    // SPDX-License-Identifier: MIT
    // OpenZeppelin Contracts (last updated v5.1.0) (utils/math/SignedMath.sol)
    pragma solidity ^0.8.20;
    import {SafeCast} from "./SafeCast.sol";
    /**
     * @dev Standard signed math utilities missing in the Solidity language.
     */
    library SignedMath {
        /**
         * @dev Branchless ternary evaluation for `a ? b : c`. Gas costs are constant.
         *
         * IMPORTANT: This function may reduce bytecode size and consume less gas when used standalone.
         * However, the compiler may optimize Solidity ternary operations (i.e. `a ? b : c`) to only compute
         * one branch when needed, making this function more expensive.
         */
        function ternary(bool condition, int256 a, int256 b) internal pure returns (int256) {
            unchecked {
                // branchless ternary works because:
                // b ^ (a ^ b) == a
                // b ^ 0 == b
                return b ^ ((a ^ b) * int256(SafeCast.toUint(condition)));
            }
        }
        /**
         * @dev Returns the largest of two signed numbers.
         */
        function max(int256 a, int256 b) internal pure returns (int256) {
            return ternary(a > b, a, b);
        }
        /**
         * @dev Returns the smallest of two signed numbers.
         */
        function min(int256 a, int256 b) internal pure returns (int256) {
            return ternary(a < b, a, b);
        }
        /**
         * @dev Returns the average of two signed numbers without overflow.
         * The result is rounded towards zero.
         */
        function average(int256 a, int256 b) internal pure returns (int256) {
            // Formula from the book "Hacker's Delight"
            int256 x = (a & b) + ((a ^ b) >> 1);
            return x + (int256(uint256(x) >> 255) & (a ^ b));
        }
        /**
         * @dev Returns the absolute unsigned value of a signed value.
         */
        function abs(int256 n) internal pure returns (uint256) {
            unchecked {
                // Formula from the "Bit Twiddling Hacks" by Sean Eron Anderson.
                // Since `n` is a signed integer, the generated bytecode will use the SAR opcode to perform the right shift,
                // taking advantage of the most significant (or "sign" bit) in two's complement representation.
                // This opcode adds new most significant bits set to the value of the previous most significant bit. As a result,
                // the mask will either be `bytes32(0)` (if n is positive) or `~bytes32(0)` (if n is negative).
                int256 mask = n >> 255;
                // A `bytes32(0)` mask leaves the input unchanged, while a `~bytes32(0)` mask complements it.
                return uint256((n + mask) ^ mask);
            }
        }
    }
    // SPDX-License-Identifier: MIT
    // OpenZeppelin Contracts (last updated v5.2.0) (token/ERC20/utils/SafeERC20.sol)
    pragma solidity ^0.8.20;
    import {IERC20} from "../IERC20.sol";
    import {IERC1363} from "../../../interfaces/IERC1363.sol";
    /**
     * @title SafeERC20
     * @dev Wrappers around ERC-20 operations that throw on failure (when the token
     * contract returns false). Tokens that return no value (and instead revert or
     * throw on failure) are also supported, non-reverting calls are assumed to be
     * successful.
     * To use this library you can add a `using SafeERC20 for IERC20;` statement to your contract,
     * which allows you to call the safe operations as `token.safeTransfer(...)`, etc.
     */
    library SafeERC20 {
        /**
         * @dev An operation with an ERC-20 token failed.
         */
        error SafeERC20FailedOperation(address token);
        /**
         * @dev Indicates a failed `decreaseAllowance` request.
         */
        error SafeERC20FailedDecreaseAllowance(address spender, uint256 currentAllowance, uint256 requestedDecrease);
        /**
         * @dev Transfer `value` amount of `token` from the calling contract to `to`. If `token` returns no value,
         * non-reverting calls are assumed to be successful.
         */
        function safeTransfer(IERC20 token, address to, uint256 value) internal {
            _callOptionalReturn(token, abi.encodeCall(token.transfer, (to, value)));
        }
        /**
         * @dev Transfer `value` amount of `token` from `from` to `to`, spending the approval given by `from` to the
         * calling contract. If `token` returns no value, non-reverting calls are assumed to be successful.
         */
        function safeTransferFrom(IERC20 token, address from, address to, uint256 value) internal {
            _callOptionalReturn(token, abi.encodeCall(token.transferFrom, (from, to, value)));
        }
        /**
         * @dev Increase the calling contract's allowance toward `spender` by `value`. If `token` returns no value,
         * non-reverting calls are assumed to be successful.
         *
         * IMPORTANT: If the token implements ERC-7674 (ERC-20 with temporary allowance), and if the "client"
         * smart contract uses ERC-7674 to set temporary allowances, then the "client" smart contract should avoid using
         * this function. Performing a {safeIncreaseAllowance} or {safeDecreaseAllowance} operation on a token contract
         * that has a non-zero temporary allowance (for that particular owner-spender) will result in unexpected behavior.
         */
        function safeIncreaseAllowance(IERC20 token, address spender, uint256 value) internal {
            uint256 oldAllowance = token.allowance(address(this), spender);
            forceApprove(token, spender, oldAllowance + value);
        }
        /**
         * @dev Decrease the calling contract's allowance toward `spender` by `requestedDecrease`. If `token` returns no
         * value, non-reverting calls are assumed to be successful.
         *
         * IMPORTANT: If the token implements ERC-7674 (ERC-20 with temporary allowance), and if the "client"
         * smart contract uses ERC-7674 to set temporary allowances, then the "client" smart contract should avoid using
         * this function. Performing a {safeIncreaseAllowance} or {safeDecreaseAllowance} operation on a token contract
         * that has a non-zero temporary allowance (for that particular owner-spender) will result in unexpected behavior.
         */
        function safeDecreaseAllowance(IERC20 token, address spender, uint256 requestedDecrease) internal {
            unchecked {
                uint256 currentAllowance = token.allowance(address(this), spender);
                if (currentAllowance < requestedDecrease) {
                    revert SafeERC20FailedDecreaseAllowance(spender, currentAllowance, requestedDecrease);
                }
                forceApprove(token, spender, currentAllowance - requestedDecrease);
            }
        }
        /**
         * @dev Set the calling contract's allowance toward `spender` to `value`. If `token` returns no value,
         * non-reverting calls are assumed to be successful. Meant to be used with tokens that require the approval
         * to be set to zero before setting it to a non-zero value, such as USDT.
         *
         * NOTE: If the token implements ERC-7674, this function will not modify any temporary allowance. This function
         * only sets the "standard" allowance. Any temporary allowance will remain active, in addition to the value being
         * set here.
         */
        function forceApprove(IERC20 token, address spender, uint256 value) internal {
            bytes memory approvalCall = abi.encodeCall(token.approve, (spender, value));
            if (!_callOptionalReturnBool(token, approvalCall)) {
                _callOptionalReturn(token, abi.encodeCall(token.approve, (spender, 0)));
                _callOptionalReturn(token, approvalCall);
            }
        }
        /**
         * @dev Performs an {ERC1363} transferAndCall, with a fallback to the simple {ERC20} transfer if the target has no
         * code. This can be used to implement an {ERC721}-like safe transfer that rely on {ERC1363} checks when
         * targeting contracts.
         *
         * Reverts if the returned value is other than `true`.
         */
        function transferAndCallRelaxed(IERC1363 token, address to, uint256 value, bytes memory data) internal {
            if (to.code.length == 0) {
                safeTransfer(token, to, value);
            } else if (!token.transferAndCall(to, value, data)) {
                revert SafeERC20FailedOperation(address(token));
            }
        }
        /**
         * @dev Performs an {ERC1363} transferFromAndCall, with a fallback to the simple {ERC20} transferFrom if the target
         * has no code. This can be used to implement an {ERC721}-like safe transfer that rely on {ERC1363} checks when
         * targeting contracts.
         *
         * Reverts if the returned value is other than `true`.
         */
        function transferFromAndCallRelaxed(
            IERC1363 token,
            address from,
            address to,
            uint256 value,
            bytes memory data
        ) internal {
            if (to.code.length == 0) {
                safeTransferFrom(token, from, to, value);
            } else if (!token.transferFromAndCall(from, to, value, data)) {
                revert SafeERC20FailedOperation(address(token));
            }
        }
        /**
         * @dev Performs an {ERC1363} approveAndCall, with a fallback to the simple {ERC20} approve if the target has no
         * code. This can be used to implement an {ERC721}-like safe transfer that rely on {ERC1363} checks when
         * targeting contracts.
         *
         * NOTE: When the recipient address (`to`) has no code (i.e. is an EOA), this function behaves as {forceApprove}.
         * Opposedly, when the recipient address (`to`) has code, this function only attempts to call {ERC1363-approveAndCall}
         * once without retrying, and relies on the returned value to be true.
         *
         * Reverts if the returned value is other than `true`.
         */
        function approveAndCallRelaxed(IERC1363 token, address to, uint256 value, bytes memory data) internal {
            if (to.code.length == 0) {
                forceApprove(token, to, value);
            } else if (!token.approveAndCall(to, value, data)) {
                revert SafeERC20FailedOperation(address(token));
            }
        }
        /**
         * @dev Imitates a Solidity high-level call (i.e. a regular function call to a contract), relaxing the requirement
         * on the return value: the return value is optional (but if data is returned, it must not be false).
         * @param token The token targeted by the call.
         * @param data The call data (encoded using abi.encode or one of its variants).
         *
         * This is a variant of {_callOptionalReturnBool} that reverts if call fails to meet the requirements.
         */
        function _callOptionalReturn(IERC20 token, bytes memory data) private {
            uint256 returnSize;
            uint256 returnValue;
            assembly ("memory-safe") {
                let success := call(gas(), token, 0, add(data, 0x20), mload(data), 0, 0x20)
                // bubble errors
                if iszero(success) {
                    let ptr := mload(0x40)
                    returndatacopy(ptr, 0, returndatasize())
                    revert(ptr, returndatasize())
                }
                returnSize := returndatasize()
                returnValue := mload(0)
            }
            if (returnSize == 0 ? address(token).code.length == 0 : returnValue != 1) {
                revert SafeERC20FailedOperation(address(token));
            }
        }
        /**
         * @dev Imitates a Solidity high-level call (i.e. a regular function call to a contract), relaxing the requirement
         * on the return value: the return value is optional (but if data is returned, it must not be false).
         * @param token The token targeted by the call.
         * @param data The call data (encoded using abi.encode or one of its variants).
         *
         * This is a variant of {_callOptionalReturn} that silently catches all reverts and returns a bool instead.
         */
        function _callOptionalReturnBool(IERC20 token, bytes memory data) private returns (bool) {
            bool success;
            uint256 returnSize;
            uint256 returnValue;
            assembly ("memory-safe") {
                success := call(gas(), token, 0, add(data, 0x20), mload(data), 0, 0x20)
                returnSize := returndatasize()
                returnValue := mload(0)
            }
            return success && (returnSize == 0 ? address(token).code.length > 0 : returnValue == 1);
        }
    }
    // SPDX-License-Identifier: MIT
    pragma solidity >=0.8.0;
    import { IMessageLibManager } from "./IMessageLibManager.sol";
    import { IMessagingComposer } from "./IMessagingComposer.sol";
    import { IMessagingChannel } from "./IMessagingChannel.sol";
    import { IMessagingContext } from "./IMessagingContext.sol";
    struct MessagingParams {
        uint32 dstEid;
        bytes32 receiver;
        bytes message;
        bytes options;
        bool payInLzToken;
    }
    struct MessagingReceipt {
        bytes32 guid;
        uint64 nonce;
        MessagingFee fee;
    }
    struct MessagingFee {
        uint256 nativeFee;
        uint256 lzTokenFee;
    }
    struct Origin {
        uint32 srcEid;
        bytes32 sender;
        uint64 nonce;
    }
    interface ILayerZeroEndpointV2 is IMessageLibManager, IMessagingComposer, IMessagingChannel, IMessagingContext {
        event PacketSent(bytes encodedPayload, bytes options, address sendLibrary);
        event PacketVerified(Origin origin, address receiver, bytes32 payloadHash);
        event PacketDelivered(Origin origin, address receiver);
        event LzReceiveAlert(
            address indexed receiver,
            address indexed executor,
            Origin origin,
            bytes32 guid,
            uint256 gas,
            uint256 value,
            bytes message,
            bytes extraData,
            bytes reason
        );
        event LzTokenSet(address token);
        event DelegateSet(address sender, address delegate);
        function quote(MessagingParams calldata _params, address _sender) external view returns (MessagingFee memory);
        function send(
            MessagingParams calldata _params,
            address _refundAddress
        ) external payable returns (MessagingReceipt memory);
        function verify(Origin calldata _origin, address _receiver, bytes32 _payloadHash) external;
        function verifiable(Origin calldata _origin, address _receiver) external view returns (bool);
        function initializable(Origin calldata _origin, address _receiver) external view returns (bool);
        function lzReceive(
            Origin calldata _origin,
            address _receiver,
            bytes32 _guid,
            bytes calldata _message,
            bytes calldata _extraData
        ) external payable;
        // oapp can burn messages partially by calling this function with its own business logic if messages are verified in order
        function clear(address _oapp, Origin calldata _origin, bytes32 _guid, bytes calldata _message) external;
        function setLzToken(address _lzToken) external;
        function lzToken() external view returns (address);
        function nativeToken() external view returns (address);
        function setDelegate(address _delegate) external;
    }
    // SPDX-License-Identifier: MIT
    pragma solidity ^0.8.20;
    import { ILayerZeroReceiver, Origin } from "@layerzerolabs/lz-evm-protocol-v2/contracts/interfaces/ILayerZeroReceiver.sol";
    interface IOAppReceiver is ILayerZeroReceiver {
        /**
         * @notice Indicates whether an address is an approved composeMsg sender to the Endpoint.
         * @param _origin The origin information containing the source endpoint and sender address.
         *  - srcEid: The source chain endpoint ID.
         *  - sender: The sender address on the src chain.
         *  - nonce: The nonce of the message.
         * @param _message The lzReceive payload.
         * @param _sender The sender address.
         * @return isSender Is a valid sender.
         *
         * @dev Applications can optionally choose to implement a separate composeMsg sender that is NOT the bridging layer.
         * @dev The default sender IS the OAppReceiver implementer.
         */
        function isComposeMsgSender(
            Origin calldata _origin,
            bytes calldata _message,
            address _sender
        ) external view returns (bool isSender);
    }
    // SPDX-License-Identifier: MIT
    pragma solidity ^0.8.20;
    import { ILayerZeroEndpointV2 } from "@layerzerolabs/lz-evm-protocol-v2/contracts/interfaces/ILayerZeroEndpointV2.sol";
    /**
     * @title IOAppCore
     */
    interface IOAppCore {
        // Custom error messages
        error OnlyPeer(uint32 eid, bytes32 sender);
        error NoPeer(uint32 eid);
        error InvalidEndpointCall();
        error InvalidDelegate();
        // Event emitted when a peer (OApp) is set for a corresponding endpoint
        event PeerSet(uint32 eid, bytes32 peer);
        /**
         * @notice Retrieves the OApp version information.
         * @return senderVersion The version of the OAppSender.sol contract.
         * @return receiverVersion The version of the OAppReceiver.sol contract.
         */
        function oAppVersion() external view returns (uint64 senderVersion, uint64 receiverVersion);
        /**
         * @notice Retrieves the LayerZero endpoint associated with the OApp.
         * @return iEndpoint The LayerZero endpoint as an interface.
         */
        function endpoint() external view returns (ILayerZeroEndpointV2 iEndpoint);
        /**
         * @notice Retrieves the peer (OApp) associated with a corresponding endpoint.
         * @param _eid The endpoint ID.
         * @return peer The peer address (OApp instance) associated with the corresponding endpoint.
         */
        function peers(uint32 _eid) external view returns (bytes32 peer);
        /**
         * @notice Sets the peer address (OApp instance) for a corresponding endpoint.
         * @param _eid The endpoint ID.
         * @param _peer The address of the peer to be associated with the corresponding endpoint.
         */
        function setPeer(uint32 _eid, bytes32 _peer) external;
        /**
         * @notice Sets the delegate address for the OApp Core.
         * @param _delegate The address of the delegate to be set.
         */
        function setDelegate(address _delegate) external;
    }
    // SPDX-License-Identifier: MIT
    pragma solidity ^0.8.20;
    import { Origin } from "@layerzerolabs/lz-evm-protocol-v2/contracts/interfaces/ILayerZeroEndpointV2.sol";
    import { PacketV1Codec } from "@layerzerolabs/lz-evm-protocol-v2/contracts/messagelib/libs/PacketV1Codec.sol";
    /**
     * @title InboundPacket
     * @dev Structure representing an inbound packet received by the contract.
     */
    struct InboundPacket {
        Origin origin; // Origin information of the packet.
        uint32 dstEid; // Destination endpointId of the packet.
        address receiver; // Receiver address for the packet.
        bytes32 guid; // Unique identifier of the packet.
        uint256 value; // msg.value of the packet.
        address executor; // Executor address for the packet.
        bytes message; // Message payload of the packet.
        bytes extraData; // Additional arbitrary data for the packet.
    }
    /**
     * @title PacketDecoder
     * @dev Library for decoding LayerZero packets.
     */
    library PacketDecoder {
        using PacketV1Codec for bytes;
        /**
         * @dev Decode an inbound packet from the given packet data.
         * @param _packet The packet data to decode.
         * @return packet An InboundPacket struct representing the decoded packet.
         */
        function decode(bytes calldata _packet) internal pure returns (InboundPacket memory packet) {
            packet.origin = Origin(_packet.srcEid(), _packet.sender(), _packet.nonce());
            packet.dstEid = _packet.dstEid();
            packet.receiver = _packet.receiverB20();
            packet.guid = _packet.guid();
            packet.message = _packet.message();
        }
        /**
         * @dev Decode multiple inbound packets from the given packet data and associated message values.
         * @param _packets An array of packet data to decode.
         * @param _packetMsgValues An array of associated message values for each packet.
         * @return packets An array of InboundPacket structs representing the decoded packets.
         */
        function decode(
            bytes[] calldata _packets,
            uint256[] memory _packetMsgValues
        ) internal pure returns (InboundPacket[] memory packets) {
            packets = new InboundPacket[](_packets.length);
            for (uint256 i = 0; i < _packets.length; i++) {
                bytes calldata packet = _packets[i];
                packets[i] = PacketDecoder.decode(packet);
                // @dev Allows the verifier to specify the msg.value that gets passed in lzReceive.
                packets[i].value = _packetMsgValues[i];
            }
        }
    }
    // SPDX-License-Identifier: MIT
    pragma solidity ^0.8.20;
    import { Ownable } from "@openzeppelin/contracts/access/Ownable.sol";
    import { IOAppCore, ILayerZeroEndpointV2 } from "./interfaces/IOAppCore.sol";
    /**
     * @title OAppCore
     * @dev Abstract contract implementing the IOAppCore interface with basic OApp configurations.
     */
    abstract contract OAppCore is IOAppCore, Ownable {
        // The LayerZero endpoint associated with the given OApp
        ILayerZeroEndpointV2 public immutable endpoint;
        // Mapping to store peers associated with corresponding endpoints
        mapping(uint32 eid => bytes32 peer) public peers;
        /**
         * @dev Constructor to initialize the OAppCore with the provided endpoint and delegate.
         * @param _endpoint The address of the LOCAL Layer Zero endpoint.
         * @param _delegate The delegate capable of making OApp configurations inside of the endpoint.
         *
         * @dev The delegate typically should be set as the owner of the contract.
         */
        constructor(address _endpoint, address _delegate) {
            endpoint = ILayerZeroEndpointV2(_endpoint);
            if (_delegate == address(0)) revert InvalidDelegate();
            endpoint.setDelegate(_delegate);
        }
        /**
         * @notice Sets the peer address (OApp instance) for a corresponding endpoint.
         * @param _eid The endpoint ID.
         * @param _peer The address of the peer to be associated with the corresponding endpoint.
         *
         * @dev Only the owner/admin of the OApp can call this function.
         * @dev Indicates that the peer is trusted to send LayerZero messages to this OApp.
         * @dev Set this to bytes32(0) to remove the peer address.
         * @dev Peer is a bytes32 to accommodate non-evm chains.
         */
        function setPeer(uint32 _eid, bytes32 _peer) public virtual onlyOwner {
            _setPeer(_eid, _peer);
        }
        /**
         * @notice Sets the peer address (OApp instance) for a corresponding endpoint.
         * @param _eid The endpoint ID.
         * @param _peer The address of the peer to be associated with the corresponding endpoint.
         *
         * @dev Indicates that the peer is trusted to send LayerZero messages to this OApp.
         * @dev Set this to bytes32(0) to remove the peer address.
         * @dev Peer is a bytes32 to accommodate non-evm chains.
         */
        function _setPeer(uint32 _eid, bytes32 _peer) internal virtual {
            peers[_eid] = _peer;
            emit PeerSet(_eid, _peer);
        }
        /**
         * @notice Internal function to get the peer address associated with a specific endpoint; reverts if NOT set.
         * ie. the peer is set to bytes32(0).
         * @param _eid The endpoint ID.
         * @return peer The address of the peer associated with the specified endpoint.
         */
        function _getPeerOrRevert(uint32 _eid) internal view virtual returns (bytes32) {
            bytes32 peer = peers[_eid];
            if (peer == bytes32(0)) revert NoPeer(_eid);
            return peer;
        }
        /**
         * @notice Sets the delegate address for the OApp.
         * @param _delegate The address of the delegate to be set.
         *
         * @dev Only the owner/admin of the OApp can call this function.
         * @dev Provides the ability for a delegate to set configs, on behalf of the OApp, directly on the Endpoint contract.
         */
        function setDelegate(address _delegate) public onlyOwner {
            endpoint.setDelegate(_delegate);
        }
    }
    // SPDX-License-Identifier: MIT
    // OpenZeppelin Contracts (last updated v5.1.0) (interfaces/IERC1363.sol)
    pragma solidity ^0.8.20;
    import {IERC20} from "./IERC20.sol";
    import {IERC165} from "./IERC165.sol";
    /**
     * @title IERC1363
     * @dev Interface of the ERC-1363 standard as defined in the https://eips.ethereum.org/EIPS/eip-1363[ERC-1363].
     *
     * Defines an extension interface for ERC-20 tokens that supports executing code on a recipient contract
     * after `transfer` or `transferFrom`, or code on a spender contract after `approve`, in a single transaction.
     */
    interface IERC1363 is IERC20, IERC165 {
        /*
         * Note: the ERC-165 identifier for this interface is 0xb0202a11.
         * 0xb0202a11 ===
         *   bytes4(keccak256('transferAndCall(address,uint256)')) ^
         *   bytes4(keccak256('transferAndCall(address,uint256,bytes)')) ^
         *   bytes4(keccak256('transferFromAndCall(address,address,uint256)')) ^
         *   bytes4(keccak256('transferFromAndCall(address,address,uint256,bytes)')) ^
         *   bytes4(keccak256('approveAndCall(address,uint256)')) ^
         *   bytes4(keccak256('approveAndCall(address,uint256,bytes)'))
         */
        /**
         * @dev Moves a `value` amount of tokens from the caller's account to `to`
         * and then calls {IERC1363Receiver-onTransferReceived} on `to`.
         * @param to The address which you want to transfer to.
         * @param value The amount of tokens to be transferred.
         * @return A boolean value indicating whether the operation succeeded unless throwing.
         */
        function transferAndCall(address to, uint256 value) external returns (bool);
        /**
         * @dev Moves a `value` amount of tokens from the caller's account to `to`
         * and then calls {IERC1363Receiver-onTransferReceived} on `to`.
         * @param to The address which you want to transfer to.
         * @param value The amount of tokens to be transferred.
         * @param data Additional data with no specified format, sent in call to `to`.
         * @return A boolean value indicating whether the operation succeeded unless throwing.
         */
        function transferAndCall(address to, uint256 value, bytes calldata data) external returns (bool);
        /**
         * @dev Moves a `value` amount of tokens from `from` to `to` using the allowance mechanism
         * and then calls {IERC1363Receiver-onTransferReceived} on `to`.
         * @param from The address which you want to send tokens from.
         * @param to The address which you want to transfer to.
         * @param value The amount of tokens to be transferred.
         * @return A boolean value indicating whether the operation succeeded unless throwing.
         */
        function transferFromAndCall(address from, address to, uint256 value) external returns (bool);
        /**
         * @dev Moves a `value` amount of tokens from `from` to `to` using the allowance mechanism
         * and then calls {IERC1363Receiver-onTransferReceived} on `to`.
         * @param from The address which you want to send tokens from.
         * @param to The address which you want to transfer to.
         * @param value The amount of tokens to be transferred.
         * @param data Additional data with no specified format, sent in call to `to`.
         * @return A boolean value indicating whether the operation succeeded unless throwing.
         */
        function transferFromAndCall(address from, address to, uint256 value, bytes calldata data) external returns (bool);
        /**
         * @dev Sets a `value` amount of tokens as the allowance of `spender` over the
         * caller's tokens and then calls {IERC1363Spender-onApprovalReceived} on `spender`.
         * @param spender The address which will spend the funds.
         * @param value The amount of tokens to be spent.
         * @return A boolean value indicating whether the operation succeeded unless throwing.
         */
        function approveAndCall(address spender, uint256 value) external returns (bool);
        /**
         * @dev Sets a `value` amount of tokens as the allowance of `spender` over the
         * caller's tokens and then calls {IERC1363Spender-onApprovalReceived} on `spender`.
         * @param spender The address which will spend the funds.
         * @param value The amount of tokens to be spent.
         * @param data Additional data with no specified format, sent in call to `spender`.
         * @return A boolean value indicating whether the operation succeeded unless throwing.
         */
        function approveAndCall(address spender, uint256 value, bytes calldata data) external returns (bool);
    }
    // SPDX-License-Identifier: MIT
    pragma solidity >=0.8.0;
    struct SetConfigParam {
        uint32 eid;
        uint32 configType;
        bytes config;
    }
    interface IMessageLibManager {
        struct Timeout {
            address lib;
            uint256 expiry;
        }
        event LibraryRegistered(address newLib);
        event DefaultSendLibrarySet(uint32 eid, address newLib);
        event DefaultReceiveLibrarySet(uint32 eid, address newLib);
        event DefaultReceiveLibraryTimeoutSet(uint32 eid, address oldLib, uint256 expiry);
        event SendLibrarySet(address sender, uint32 eid, address newLib);
        event ReceiveLibrarySet(address receiver, uint32 eid, address newLib);
        event ReceiveLibraryTimeoutSet(address receiver, uint32 eid, address oldLib, uint256 timeout);
        function registerLibrary(address _lib) external;
        function isRegisteredLibrary(address _lib) external view returns (bool);
        function getRegisteredLibraries() external view returns (address[] memory);
        function setDefaultSendLibrary(uint32 _eid, address _newLib) external;
        function defaultSendLibrary(uint32 _eid) external view returns (address);
        function setDefaultReceiveLibrary(uint32 _eid, address _newLib, uint256 _gracePeriod) external;
        function defaultReceiveLibrary(uint32 _eid) external view returns (address);
        function setDefaultReceiveLibraryTimeout(uint32 _eid, address _lib, uint256 _expiry) external;
        function defaultReceiveLibraryTimeout(uint32 _eid) external view returns (address lib, uint256 expiry);
        function isSupportedEid(uint32 _eid) external view returns (bool);
        function isValidReceiveLibrary(address _receiver, uint32 _eid, address _lib) external view returns (bool);
        /// ------------------- OApp interfaces -------------------
        function setSendLibrary(address _oapp, uint32 _eid, address _newLib) external;
        function getSendLibrary(address _sender, uint32 _eid) external view returns (address lib);
        function isDefaultSendLibrary(address _sender, uint32 _eid) external view returns (bool);
        function setReceiveLibrary(address _oapp, uint32 _eid, address _newLib, uint256 _gracePeriod) external;
        function getReceiveLibrary(address _receiver, uint32 _eid) external view returns (address lib, bool isDefault);
        function setReceiveLibraryTimeout(address _oapp, uint32 _eid, address _lib, uint256 _expiry) external;
        function receiveLibraryTimeout(address _receiver, uint32 _eid) external view returns (address lib, uint256 expiry);
        function setConfig(address _oapp, address _lib, SetConfigParam[] calldata _params) external;
        function getConfig(
            address _oapp,
            address _lib,
            uint32 _eid,
            uint32 _configType
        ) external view returns (bytes memory config);
    }
    // SPDX-License-Identifier: MIT
    pragma solidity >=0.8.0;
    interface IMessagingComposer {
        event ComposeSent(address from, address to, bytes32 guid, uint16 index, bytes message);
        event ComposeDelivered(address from, address to, bytes32 guid, uint16 index);
        event LzComposeAlert(
            address indexed from,
            address indexed to,
            address indexed executor,
            bytes32 guid,
            uint16 index,
            uint256 gas,
            uint256 value,
            bytes message,
            bytes extraData,
            bytes reason
        );
        function composeQueue(
            address _from,
            address _to,
            bytes32 _guid,
            uint16 _index
        ) external view returns (bytes32 messageHash);
        function sendCompose(address _to, bytes32 _guid, uint16 _index, bytes calldata _message) external;
        function lzCompose(
            address _from,
            address _to,
            bytes32 _guid,
            uint16 _index,
            bytes calldata _message,
            bytes calldata _extraData
        ) external payable;
    }
    // SPDX-License-Identifier: MIT
    pragma solidity >=0.8.0;
    interface IMessagingChannel {
        event InboundNonceSkipped(uint32 srcEid, bytes32 sender, address receiver, uint64 nonce);
        event PacketNilified(uint32 srcEid, bytes32 sender, address receiver, uint64 nonce, bytes32 payloadHash);
        event PacketBurnt(uint32 srcEid, bytes32 sender, address receiver, uint64 nonce, bytes32 payloadHash);
        function eid() external view returns (uint32);
        // this is an emergency function if a message cannot be verified for some reasons
        // required to provide _nextNonce to avoid race condition
        function skip(address _oapp, uint32 _srcEid, bytes32 _sender, uint64 _nonce) external;
        function nilify(address _oapp, uint32 _srcEid, bytes32 _sender, uint64 _nonce, bytes32 _payloadHash) external;
        function burn(address _oapp, uint32 _srcEid, bytes32 _sender, uint64 _nonce, bytes32 _payloadHash) external;
        function nextGuid(address _sender, uint32 _dstEid, bytes32 _receiver) external view returns (bytes32);
        function inboundNonce(address _receiver, uint32 _srcEid, bytes32 _sender) external view returns (uint64);
        function outboundNonce(address _sender, uint32 _dstEid, bytes32 _receiver) external view returns (uint64);
        function inboundPayloadHash(
            address _receiver,
            uint32 _srcEid,
            bytes32 _sender,
            uint64 _nonce
        ) external view returns (bytes32);
        function lazyInboundNonce(address _receiver, uint32 _srcEid, bytes32 _sender) external view returns (uint64);
    }
    // SPDX-License-Identifier: MIT
    pragma solidity >=0.8.0;
    interface IMessagingContext {
        function isSendingMessage() external view returns (bool);
        function getSendContext() external view returns (uint32 dstEid, address sender);
    }
    // SPDX-License-Identifier: MIT
    pragma solidity >=0.8.0;
    import { Origin } from "./ILayerZeroEndpointV2.sol";
    interface ILayerZeroReceiver {
        function allowInitializePath(Origin calldata _origin) external view returns (bool);
        function nextNonce(uint32 _eid, bytes32 _sender) external view returns (uint64);
        function lzReceive(
            Origin calldata _origin,
            bytes32 _guid,
            bytes calldata _message,
            address _executor,
            bytes calldata _extraData
        ) external payable;
    }
    // SPDX-License-Identifier: LZBL-1.2
    pragma solidity ^0.8.20;
    import { Packet } from "../../interfaces/ISendLib.sol";
    import { AddressCast } from "../../libs/AddressCast.sol";
    library PacketV1Codec {
        using AddressCast for address;
        using AddressCast for bytes32;
        uint8 internal constant PACKET_VERSION = 1;
        // header (version + nonce + path)
        // version
        uint256 private constant PACKET_VERSION_OFFSET = 0;
        //    nonce
        uint256 private constant NONCE_OFFSET = 1;
        //    path
        uint256 private constant SRC_EID_OFFSET = 9;
        uint256 private constant SENDER_OFFSET = 13;
        uint256 private constant DST_EID_OFFSET = 45;
        uint256 private constant RECEIVER_OFFSET = 49;
        // payload (guid + message)
        uint256 private constant GUID_OFFSET = 81; // keccak256(nonce + path)
        uint256 private constant MESSAGE_OFFSET = 113;
        function encode(Packet memory _packet) internal pure returns (bytes memory encodedPacket) {
            encodedPacket = abi.encodePacked(
                PACKET_VERSION,
                _packet.nonce,
                _packet.srcEid,
                _packet.sender.toBytes32(),
                _packet.dstEid,
                _packet.receiver,
                _packet.guid,
                _packet.message
            );
        }
        function encodePacketHeader(Packet memory _packet) internal pure returns (bytes memory) {
            return
                abi.encodePacked(
                    PACKET_VERSION,
                    _packet.nonce,
                    _packet.srcEid,
                    _packet.sender.toBytes32(),
                    _packet.dstEid,
                    _packet.receiver
                );
        }
        function encodePayload(Packet memory _packet) internal pure returns (bytes memory) {
            return abi.encodePacked(_packet.guid, _packet.message);
        }
        function header(bytes calldata _packet) internal pure returns (bytes calldata) {
            return _packet[0:GUID_OFFSET];
        }
        function version(bytes calldata _packet) internal pure returns (uint8) {
            return uint8(bytes1(_packet[PACKET_VERSION_OFFSET:NONCE_OFFSET]));
        }
        function nonce(bytes calldata _packet) internal pure returns (uint64) {
            return uint64(bytes8(_packet[NONCE_OFFSET:SRC_EID_OFFSET]));
        }
        function srcEid(bytes calldata _packet) internal pure returns (uint32) {
            return uint32(bytes4(_packet[SRC_EID_OFFSET:SENDER_OFFSET]));
        }
        function sender(bytes calldata _packet) internal pure returns (bytes32) {
            return bytes32(_packet[SENDER_OFFSET:DST_EID_OFFSET]);
        }
        function senderAddressB20(bytes calldata _packet) internal pure returns (address) {
            return sender(_packet).toAddress();
        }
        function dstEid(bytes calldata _packet) internal pure returns (uint32) {
            return uint32(bytes4(_packet[DST_EID_OFFSET:RECEIVER_OFFSET]));
        }
        function receiver(bytes calldata _packet) internal pure returns (bytes32) {
            return bytes32(_packet[RECEIVER_OFFSET:GUID_OFFSET]);
        }
        function receiverB20(bytes calldata _packet) internal pure returns (address) {
            return receiver(_packet).toAddress();
        }
        function guid(bytes calldata _packet) internal pure returns (bytes32) {
            return bytes32(_packet[GUID_OFFSET:MESSAGE_OFFSET]);
        }
        function message(bytes calldata _packet) internal pure returns (bytes calldata) {
            return bytes(_packet[MESSAGE_OFFSET:]);
        }
        function payload(bytes calldata _packet) internal pure returns (bytes calldata) {
            return bytes(_packet[GUID_OFFSET:]);
        }
        function payloadHash(bytes calldata _packet) internal pure returns (bytes32) {
            return keccak256(payload(_packet));
        }
    }
    // SPDX-License-Identifier: MIT
    // OpenZeppelin Contracts (last updated v5.0.0) (access/Ownable.sol)
    pragma solidity ^0.8.20;
    import {Context} from "../utils/Context.sol";
    /**
     * @dev Contract module which provides a basic access control mechanism, where
     * there is an account (an owner) that can be granted exclusive access to
     * specific functions.
     *
     * The initial owner is set to the address provided by the deployer. This can
     * later be changed with {transferOwnership}.
     *
     * This module is used through inheritance. It will make available the modifier
     * `onlyOwner`, which can be applied to your functions to restrict their use to
     * the owner.
     */
    abstract contract Ownable is Context {
        address private _owner;
        /**
         * @dev The caller account is not authorized to perform an operation.
         */
        error OwnableUnauthorizedAccount(address account);
        /**
         * @dev The owner is not a valid owner account. (eg. `address(0)`)
         */
        error OwnableInvalidOwner(address owner);
        event OwnershipTransferred(address indexed previousOwner, address indexed newOwner);
        /**
         * @dev Initializes the contract setting the address provided by the deployer as the initial owner.
         */
        constructor(address initialOwner) {
            if (initialOwner == address(0)) {
                revert OwnableInvalidOwner(address(0));
            }
            _transferOwnership(initialOwner);
        }
        /**
         * @dev Throws if called by any account other than the owner.
         */
        modifier onlyOwner() {
            _checkOwner();
            _;
        }
        /**
         * @dev Returns the address of the current owner.
         */
        function owner() public view virtual returns (address) {
            return _owner;
        }
        /**
         * @dev Throws if the sender is not the owner.
         */
        function _checkOwner() internal view virtual {
            if (owner() != _msgSender()) {
                revert OwnableUnauthorizedAccount(_msgSender());
            }
        }
        /**
         * @dev Leaves the contract without owner. It will not be possible to call
         * `onlyOwner` functions. Can only be called by the current owner.
         *
         * NOTE: Renouncing ownership will leave the contract without an owner,
         * thereby disabling any functionality that is only available to the owner.
         */
        function renounceOwnership() public virtual onlyOwner {
            _transferOwnership(address(0));
        }
        /**
         * @dev Transfers ownership of the contract to a new account (`newOwner`).
         * Can only be called by the current owner.
         */
        function transferOwnership(address newOwner) public virtual onlyOwner {
            if (newOwner == address(0)) {
                revert OwnableInvalidOwner(address(0));
            }
            _transferOwnership(newOwner);
        }
        /**
         * @dev Transfers ownership of the contract to a new account (`newOwner`).
         * Internal function without access restriction.
         */
        function _transferOwnership(address newOwner) internal virtual {
            address oldOwner = _owner;
            _owner = newOwner;
            emit OwnershipTransferred(oldOwner, newOwner);
        }
    }
    // SPDX-License-Identifier: MIT
    // OpenZeppelin Contracts (last updated v5.0.0) (interfaces/IERC20.sol)
    pragma solidity ^0.8.20;
    import {IERC20} from "../token/ERC20/IERC20.sol";
    // SPDX-License-Identifier: MIT
    pragma solidity >=0.8.0;
    import { MessagingFee } from "./ILayerZeroEndpointV2.sol";
    import { IMessageLib } from "./IMessageLib.sol";
    struct Packet {
        uint64 nonce;
        uint32 srcEid;
        address sender;
        uint32 dstEid;
        bytes32 receiver;
        bytes32 guid;
        bytes message;
    }
    interface ISendLib is IMessageLib {
        function send(
            Packet calldata _packet,
            bytes calldata _options,
            bool _payInLzToken
        ) external returns (MessagingFee memory, bytes memory encodedPacket);
        function quote(
            Packet calldata _packet,
            bytes calldata _options,
            bool _payInLzToken
        ) external view returns (MessagingFee memory);
        function setTreasury(address _treasury) external;
        function withdrawFee(address _to, uint256 _amount) external;
        function withdrawLzTokenFee(address _lzToken, address _to, uint256 _amount) external;
    }
    // SPDX-License-Identifier: LZBL-1.2
    pragma solidity ^0.8.20;
    library AddressCast {
        error AddressCast_InvalidSizeForAddress();
        error AddressCast_InvalidAddress();
        function toBytes32(bytes calldata _addressBytes) internal pure returns (bytes32 result) {
            if (_addressBytes.length > 32) revert AddressCast_InvalidAddress();
            result = bytes32(_addressBytes);
            unchecked {
                uint256 offset = 32 - _addressBytes.length;
                result = result >> (offset * 8);
            }
        }
        function toBytes32(address _address) internal pure returns (bytes32 result) {
            result = bytes32(uint256(uint160(_address)));
        }
        function toBytes(bytes32 _addressBytes32, uint256 _size) internal pure returns (bytes memory result) {
            if (_size == 0 || _size > 32) revert AddressCast_InvalidSizeForAddress();
            result = new bytes(_size);
            unchecked {
                uint256 offset = 256 - _size * 8;
                assembly {
                    mstore(add(result, 32), shl(offset, _addressBytes32))
                }
            }
        }
        function toAddress(bytes32 _addressBytes32) internal pure returns (address result) {
            result = address(uint160(uint256(_addressBytes32)));
        }
        function toAddress(bytes calldata _addressBytes) internal pure returns (address result) {
            if (_addressBytes.length != 20) revert AddressCast_InvalidAddress();
            result = address(bytes20(_addressBytes));
        }
    }
    // SPDX-License-Identifier: MIT
    // OpenZeppelin Contracts (last updated v5.0.1) (utils/Context.sol)
    pragma solidity ^0.8.20;
    /**
     * @dev Provides information about the current execution context, including the
     * sender of the transaction and its data. While these are generally available
     * via msg.sender and msg.data, they should not be accessed in such a direct
     * manner, since when dealing with meta-transactions the account sending and
     * paying for execution may not be the actual sender (as far as an application
     * is concerned).
     *
     * This contract is only required for intermediate, library-like contracts.
     */
    abstract contract Context {
        function _msgSender() internal view virtual returns (address) {
            return msg.sender;
        }
        function _msgData() internal view virtual returns (bytes calldata) {
            return msg.data;
        }
        function _contextSuffixLength() internal view virtual returns (uint256) {
            return 0;
        }
    }
    // SPDX-License-Identifier: MIT
    pragma solidity >=0.8.0;
    import { IERC165 } from "@openzeppelin/contracts/utils/introspection/IERC165.sol";
    import { SetConfigParam } from "./IMessageLibManager.sol";
    enum MessageLibType {
        Send,
        Receive,
        SendAndReceive
    }
    interface IMessageLib is IERC165 {
        function setConfig(address _oapp, SetConfigParam[] calldata _config) external;
        function getConfig(uint32 _eid, address _oapp, uint32 _configType) external view returns (bytes memory config);
        function isSupportedEid(uint32 _eid) external view returns (bool);
        // message libs of same major version are compatible
        function version() external view returns (uint64 major, uint8 minor, uint8 endpointVersion);
        function messageLibType() external view returns (MessageLibType);
    }