code: public PythonDataStream generate_sequence(long from, long to) {
  		return new PythonDataStream<>(env.generateSequence(from, to).map(new AdapterMap<>()));
  	}
docs: A thin wrapper layer over {@link StreamExecutionEnvironment#generateSequence(long, long)}.
  
  @param from The number to start at (inclusive)
  @param to The number to stop at (inclusive)
  @return A python data stream, containing all number in the [from, to] interval