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Faucet.sol

// SPDX-License-Identifier: UNLICENSED
pragma solidity ^0.8.7;

contract Faucet {
    function withdraw(uint withdraw_amount) public {
        require(withdraw_amount <= 100000000000000000);

        payable(msg.sender).transfer(withdraw_amount);
    }

    // default / fallback functiont
    receive() external payable {}
}