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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 persistant_warning(request, message, extra_tags='', fail_silently=False, *args, **kwargs):
 """ Adds a persistant message with the ``WARNING`` level. """

    add_message(request, WARNING_PERSISTENT, message, extra_tags=extra_tags,
                fail_silently=fail_silently, *args, **kwargs)