pragma solidity ^0.4.24; import "../token/ERC20/ERC20.sol"; import "../crowdsale/emission/AllowanceCrowdsale.sol"; contract AllowanceCrowdsaleImpl is AllowanceCrowdsale { constructor ( uint256 _rate, address _wallet, ERC20 _token, address _tokenWallet ) public Crowdsale(_rate, _wallet, _token) AllowanceCrowdsale(_tokenWallet) { } }