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// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.0) (proxy/transparent/TransparentUpgradeableProxy.sol)
pragma solidity ^0.8.20;
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 {
    function upgradeToAndCall(address, bytes calldata) external payable;
}
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// SPDX-License-Identifier: LGPL-3.0-only
pragma solidity >=0.7.0 <0.9.0;
/// @title IProxy - Helper interface to access masterCopy of the Proxy on-chain
/// @author Richard Meissner - <richard@gnosis.io>
interface IProxy {
    function masterCopy() external view returns (address);
}
/// @title GnosisSafeProxy - Generic proxy contract allows to execute all transactions applying the code of a master contract.
/// @author Stefan George - <stefan@gnosis.io>
/// @author Richard Meissner - <richard@gnosis.io>
contract GnosisSafeProxy {
    // singleton always needs to be first declared variable, to ensure that it is at the same location in the contracts to which calls are delegated.
    // To reduce deployment costs this variable is internal and needs to be retrieved via `getStorageAt`
    address internal singleton;
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// SPDX-License-Identifier: MIT
pragma solidity =0.8.23;
import {ERC20, ERC20Burnable} from "@openzeppelin/contracts/token/ERC20/extensions/ERC20Burnable.sol";
import {ERC20Permit} from "@openzeppelin/contracts/token/ERC20/extensions/ERC20Permit.sol";
import {ERC20Capped} from "@openzeppelin/contracts/token/ERC20/extensions/ERC20Capped.sol";
import {ERC20Pausable} from "@openzeppelin/contracts/token/ERC20/extensions/ERC20Pausable.sol";
import {Ownable} from "@openzeppelin/contracts/access/Ownable.sol";
/// @title AltLayer Token Contract
/// @notice Implements an ERC20 token with a cap, burnability, pausability, and ownership features
contract AltLayerToken is
    ERC20Burnable,
    ERC20Permit,
    ERC20Capped,
    ERC20Pausable,
    Ownable
{
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// SPDX-License-Identifier: MIT
pragma solidity =0.8.23;
import {SafeERC20, IERC20} from "@openzeppelin/contracts/token/ERC20/utils/SafeERC20.sol";
import {ECDSA} from "@openzeppelin/contracts/utils/cryptography/ECDSA.sol";
import {MerkleProof} from "@openzeppelin/contracts/utils/cryptography/MerkleProof.sol";
import {IERC20} from "@openzeppelin/contracts/token/ERC20/IERC20.sol";
import {OwnableUpgradeable} from "@openzeppelin/contracts-upgradeable/access/OwnableUpgradeable.sol";
import {PausableUpgradeable} from "@openzeppelin/contracts-upgradeable/utils/PausableUpgradeable.sol";
/// @title Airdrop Contract
/// @notice This contract allows for a token airdrop based on a Merkle tree for efficient proof of inclusion.
contract Airdrop is PausableUpgradeable, OwnableUpgradeable {
    using SafeERC20 for IERC20;
    address public vault;
    address public token;
    bytes32 public merkleRoot;
    bytes32 public messageHash;
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