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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_bookmark_tags(self, bookmark_id):
 """ Retrieve tags that have been applied to a bookmark. The requested bookmark must belong to the current user. :param bookmark_id: ID of the bookmark to delete. """

        url = self._generate_url('bookmarks/{0}/tags'.format(bookmark_id))
        return self.get(url)