def METHOD_NAME(self, streamer, config_dict):
    """Sets up the streamer based on a configuration dict.
    Args:
        streamer (ImportStreamer): an import streamer object.
        config_dict (dict): A dictionary that contains
            configuration details for the streamer.
    """
    message = config_dict.get("message")
    if message:
        streamer.set_message_format_string(message)
    timestamp_desc = config_dict.get("timestamp_desc")
    if timestamp_desc:
        streamer.set_timestamp_description(timestamp_desc)
    separator = config_dict.get("separator")
    if separator:
        streamer.set_csv_delimiter(separator)
    encoding = config_dict.get("encoding")
    if encoding:
        streamer.set_text_encoding(encoding)
    datetime_string = config_dict.get("datetime")
    if datetime_string:
        streamer.set_datetime_column(datetime_string)