docs: def get_logging_stream_handler(logger=None, formatter=LOGGING_DEFAULT_FORMATTER):
      """
      Adds a logging stream handler to given logger or default logger using given file.
  
      :param logger: Logger to add the handler to.
      :type logger: Logger
      :param file: File to verbose into.
      :type file: unicode
      :param formatter: Handler formatter.
      :type formatter: Formatter
      :return: Added handler.
      :rtype: Handler
      """
  
      logger = LOGGER if logger is None else logger
      logging_stream_handler = logging.StreamHandler(Streamer())
      logging_stream_handler.setFormatter(formatter)
      logger.addHandler(logging_stream_handler)
      return logging_stream_handler