code: public final void mNOT() throws RecognitionException {
          try {
              int _type = NOT;
              int _channel = DEFAULT_TOKEN_CHANNEL;
              // MessageFilter.g:45:5: ( 'not' )
              // MessageFilter.g:45:7: 'not'
              {
              match("not"); 
  
  
  
              }
  
              state.type = _type;
              state.channel = _channel;
          }
          finally {
          	// do for sure before leaving
          }
      }
docs: $ANTLR start "NOT"