def external(self, external_id, include=None):
return self._query_zendesk(self.endpoint.external, '<STR_LIT>', id=external_id, include=include)<EOL>
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