func: function liabilityFinalized(
          uint256 _gas
      )
          external
          returns (bool)
      {
          require(gasUtilizing[msg.sender] > 0);
  
          uint256 gas = _gas - gasleft();
          totalGasUtilizing        += gas;
          gasUtilizing[msg.sender] += gas;
          require(xrt.mint(tx.origin, wnFromGas(gasUtilizing[msg.sender])));
          return true;
      }