func: function stop(string proposal) external 
      {
          
          
          require(isVoter(tx.origin) && !mStopped);
          
          
          if(!confirmation(uint256(keccak256(msg.data)))) return;
          
          
          mStopped = true;
          
          
          emit Stopped(uint(keccak256(msg.data)));
      }