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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 add_stderr_logger(level=logging.DEBUG):
 """ Helper for quickly adding a StreamHandler to the logger. Useful for debugging. Returns the handler after adding it. """

    # This method needs to be in this __init__.py to get the __name__ correct
    # even if urllib3 is vendored within another package.
    logger = logging.getLogger(__name__)
    handler = logging.StreamHandler()
    handler.setFormatter(logging.Formatter('%(asctime)s %(levelname)s %(message)s'))
    logger.addHandler(handler)
    logger.setLevel(level)
    logger.debug('Added a stderr logging handler to logger: %s' % __name__)
    return handler