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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_avatar_upload_to(self, filename):
 """ Returns the path to upload the associated avatar to. """

        dummy, ext = os.path.splitext(filename)
        return os.path.join(
            machina_settings.PROFILE_AVATAR_UPLOAD_TO,
            '{id}{ext}'.format(id=str(uuid.uuid4()).replace('-', ''), ext=ext),
        )