code: public final void mIN() throws RecognitionException {
          try {
              int _type = IN;
              int _channel = DEFAULT_TOKEN_CHANNEL;
              // EventFilter.g:40:4: ( 'in' )
              // EventFilter.g:40:6: 'in'
              {
              match("in"); 
  
  
  
              }
  
              state.type = _type;
              state.channel = _channel;
          }
          finally {
          	// do for sure before leaving
          }
      }
docs: $ANTLR start "IN"