code: public PythonDataStream read_text_file(String path) throws IOException {
  		return new PythonDataStream<>(env.readTextFile(path).map(new AdapterMap<String>()));
  	}
docs: A thin wrapper layer over {@link StreamExecutionEnvironment#readTextFile(java.lang.String)}.
  
  @param path The path of the file, as a URI (e.g., "file:///some/local/file" or "hdfs://host:port/file/path").
  @return The data stream that represents the data read from the given file as text lines
  @throws IOException