pragma solidity 0.5.17; import "../modules/Affiliates.sol"; contract MockAffiliates is Affiliates { function getAffiliatesUserReferrer(address user) public view returns (address) { return affiliatesUserReferrer[user]; // REFACTOR: will be useful if affiliatesUserReferrer visibillity is not public } function initialize(address target) external onlyOwner { _setTarget(this.getAffiliatesUserReferrer.selector, target); } }