pragma solidity ^0.5.2; import "../token/ERC20/IERC20.sol"; import "../crowdsale/distribution/RefundablePostDeliveryCrowdsale.sol"; contract RefundablePostDeliveryCrowdsaleImpl is RefundablePostDeliveryCrowdsale { constructor ( uint256 openingTime, uint256 closingTime, uint256 rate, address payable wallet, IERC20 token, uint256 goal ) public Crowdsale(rate, wallet, token) TimedCrowdsale(openingTime, closingTime) RefundableCrowdsale(goal) { // solhint-disable-previous-line no-empty-blocks } }