code: public PythonSplitStream split(OutputSelector<PyObject> output_selector) throws IOException {
  		return new PythonSplitStream(this.stream.split(new PythonOutputSelector(output_selector)));
  	}
docs: A thin wrapper layer over {@link DataStream#split(OutputSelector)}.
  
  @param output_selector The user defined {@link OutputSelector} for directing the tuples.
  @return The {@link PythonSplitStream}