pragma solidity ^0.4.24; import "../access/roles/CapperRole.sol"; contract CapperRoleMock is CapperRole { function removeCapper(address account) public { _removeCapper(account); } function onlyCapperMock() public view onlyCapper { } // Causes a compilation error if super._removeCapper is not internal function _removeCapper(address account) internal { super._removeCapper(account); } }