code: @PublicEvolving
  	public DataStreamSink<T> writeUsingOutputFormat(OutputFormat<T> format) {
  		return addSink(new OutputFormatSinkFunction<>(format));
  	}
docs: Writes the dataStream into an output, described by an OutputFormat.
  
  <p>The output is not participating in Flink's checkpointing!
  
  <p>For writing to a file system periodically, the use of the "flink-connector-filesystem"
  is recommended.
  
  @param format The output format
  @return The closed DataStream