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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 external(self, external_id, include=None):
 """ Locate an Organization by it's external_id attribute. :param include: list of objects to sideload. `Side-loading API Docs <https://developer.zendesk.com/rest_api/docs/core/side_loading>`__. :param external_id: external id of organization """

        return self._query_zendesk(self.endpoint.external, 'organization', id=external_id, include=include)