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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 is_prefix(cls, result):
 """Return ``True`` if result is a prefix object. .. note:: Boto uses the S3 Prefix object for GS prefixes. """

        from boto.s3.prefix import Prefix

        return isinstance(result, Prefix) or cls._is_gs_folder(result)