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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def get_stream_handler(stream=sys.stderr, level=logging.INFO, log_format=log_formats.easy_read):
 """ Returns a set up stream handler to add to a logger. :param stream: which stream to use, defaults to sys.stderr :param level: logging level to set handler at :param log_format: formatter to use :return: stream handler """

    sh = logging.StreamHandler(stream)
    sh.setLevel(level)
    sh.setFormatter(logging.Formatter(log_format))
    return sh