docs: public <L, R> SingleOutputStreamOperator<R> select(
  			final OutputTag<L> timedOutPartialMatchesTag,
  			final PatternTimeoutFunction<T, L> patternTimeoutFunction,
  			final PatternSelectFunction<T, R> patternSelectFunction) {
  
  		final TypeInformation<R> rightTypeInfo = TypeExtractor.getUnaryOperatorReturnType(
  			patternSelectFunction,
  			PatternSelectFunction.class,
  			0,
  			1,
  			TypeExtractor.NO_INDEX,
  			builder.getInputType(),
  			null,
  			false);
  
  		return select(
  			timedOutPartialMatchesTag,
  			patternTimeoutFunction,
  			rightTypeInfo,
  			patternSelectFunction);
  	}