pragma solidity ^0.5.0; import "../token/ERC20/IERC20.sol"; import "../crowdsale/emission/AllowanceCrowdsale.sol"; contract AllowanceCrowdsaleImpl is AllowanceCrowdsale { constructor (uint256 rate, address payable wallet, IERC20 token, address tokenWallet) public { Crowdsale.initialize(rate, wallet, token); AllowanceCrowdsale.initialize(tokenWallet); } }