 initializer
    function initialize(address _controller) external onlyImpl {
        Managed._initialize(_controller);
    }
    function _onlyGovernor() internal view {
        require(msg.sender == controller.getGovernor(), "Caller must be Controller governor");
    }
     function approveAll(address _spender) external onlyGovernor {
        graphToken().approve(_spender, type(uint256).max);
    }
 initializer
   function initialize(address _owner) external onlyImpl initializer  {
