def get_categories(self):
        """ Return a list of categories that a safe deposit box can belong to"""
        sdb_resp = get_with_retry(self.cerberus_url + '/v1/category',
                                headers=self.HEADERS)

        throw_if_bad_response(sdb_resp)
        return sdb_resp.json()
Return a list of categories that a safe deposit box can belong to