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// File: contracts/common/Proxy/IERCProxy.sol
pragma solidity 0.6.6;
interface IERCProxy {
    function proxyType() external pure returns (uint256 proxyTypeId);
    function implementation() external view returns (address codeAddr);
}
// File: contracts/common/Proxy/Proxy.sol
pragma solidity 0.6.6;
abstract contract Proxy is IERCProxy {
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pragma solidity ^0.4.24;
// File: zos-lib/contracts/upgradeability/Proxy.sol
/**
 * @title Proxy
 * @dev Implements delegation of calls to other contracts, with proper
 * forwarding of return values and bubbling of failures.
 * It defines a fallback function that delegates all calls to the address
 * returned by the abstract _implementation() internal function.
 */
contract Proxy {
  /**
   * @dev Fallback function.
   * Implemented entirely in `_fallback`.
   */
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// File: contracts/common/Proxy/IERCProxy.sol
pragma solidity 0.6.6;
interface IERCProxy {
    function proxyType() external pure returns (uint256 proxyTypeId);
    function implementation() external view returns (address codeAddr);
}
// File: contracts/common/Proxy/Proxy.sol
pragma solidity 0.6.6;
abstract contract Proxy is IERCProxy {
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pragma solidity 0.6.6;
import {SafeMath} from "@openzeppelin/contracts/math/SafeMath.sol";
import {IRootChainManager} from "./IRootChainManager.sol";
import {RootChainManagerStorage} from "./RootChainManagerStorage.sol";
import {IStateSender} from "../StateSender/IStateSender.sol";
import {ICheckpointManager} from "../ICheckpointManager.sol";
import {RLPReader} from "../../lib/RLPReader.sol";
import {ExitPayloadReader} from "../../lib/ExitPayloadReader.sol";
import {MerklePatriciaProof} from "../../lib/MerklePatriciaProof.sol";
import {Merkle} from "../../lib/Merkle.sol";
import {ITokenPredicate} from "../TokenPredicates/ITokenPredicate.sol";
import {Initializable} from "../../common/Initializable.sol";
import {NativeMetaTransaction} from "../../common/NativeMetaTransaction.sol";
import {AccessControl} from "@openzeppelin/contracts/access/AccessControl.sol";
import {AccessControlMixin} from "../../common/AccessControlMixin.sol";
import {ContextMixin} from "../../common/ContextMixin.sol";
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// File: contracts/common/governance/IGovernance.sol
pragma solidity ^0.5.2;
interface IGovernance {
    function update(address target, bytes calldata data) external;
}
// File: contracts/common/governance/Governable.sol
pragma solidity ^0.5.2;
contract Governable {
    IGovernance public governance;
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pragma solidity 0.6.6;
import {IERC20} from "@openzeppelin/contracts/token/ERC20/IERC20.sol";
import {SafeERC20} from "@openzeppelin/contracts/token/ERC20/SafeERC20.sol";
import {AccessControlMixin} from "../../common/AccessControlMixin.sol";
import {RLPReader} from "../../lib/RLPReader.sol";
import {ITokenPredicate} from "./ITokenPredicate.sol";
import {Initializable} from "../../common/Initializable.sol";
contract ERC20Predicate is ITokenPredicate, AccessControlMixin, Initializable {
    using RLPReader for bytes;
    using RLPReader for RLPReader.RLPItem;
    using SafeERC20 for IERC20;
    bytes32 public constant MANAGER_ROLE = keccak256("MANAGER_ROLE");
    bytes32 public constant TOKEN_TYPE = keccak256("ERC20");
    bytes32 public constant TRANSFER_EVENT_SIG = 0xddf252ad1be2c89b69c2b068fc378daa952ba7f163c4a11628f55a4df523b3ef;
    event LockedERC20(
        address indexed depositor,
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/**
 * SPDX-License-Identifier: Apache-2.0
 *
 * Copyright (c) 2023, Circle Internet Financial, LLC.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
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