pragma solidity ^0.4.20; import 'IControlled.sol'; import 'IController.sol'; import 'libraries/token/ERC20Basic.sol'; contract ControllerUser is IControlled { address public updatedController; function getController() public view returns (IController) { return IController(0); } function setController(IController _controller) public returns(bool) { updatedController = _controller; return true; } }