wormhole-nativeswap-example/contracts/contracts/shared/WETH.sol

// SPDX-License-Identifier: Apache 2

pragma solidity ^0.7.6;
pragma abicoder v2;

import '@openzeppelin/contracts/token/ERC20/IERC20.sol';

interface IWETH is IERC20 {
    function deposit() external payable;
    function withdraw(uint amount) external;
}