pragma solidity ^0.4.24; import "../token/ERC20/IERC20.sol"; import "../crowdsale/validation/TimedCrowdsale.sol"; contract TimedCrowdsaleImpl is TimedCrowdsale { constructor ( uint256 openingTime, uint256 closingTime, uint256 rate, address wallet, IERC20 token ) public { Crowdsale.initialize(rate, wallet, token); TimedCrowdsale.initialize(openingTime, closingTime); } }