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• interface IERC20
•    - function transfer(address recipient, ...
•    - function balanceOf(address account)
•  contract Implementation
•    - function withdraw(address erc20TokenA ...

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/**
 *Submitted for verification at sepolia-optimism.etherscan.io on 2025-01-14
*/

// File: contracts/Implementation.sol

// SPDX-License-Identifier: MIT
pragma solidity 0.8.4;

interface IERC20 {
    function transfer(address recipient, uint256 amount) external returns (bool);
    function balanceOf(address account) external view returns (uint256);
}

contract  Implementation{

    function withdraw(address erc20TokenAddress, address recipient) external {
        // the target erc20 token address
        IERC20 erc20Token = IERC20(erc20TokenAddress);

        // get balance
        uint256 balance = erc20Token.balanceOf(address(this));

        // transfer
        if (balance > 0) {
            require(erc20Token.transfer(recipient, balance), "Transfer failed");
        }
    }
}

[{"inputs":[{"internalType":"address","name":"erc20TokenAddress","type":"address"},{"internalType":"address","name":"recipient","type":"address"}],"name":"withdraw","outputs":[],"stateMutability":"nonpayable","type":"function"}]

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