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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_entities(self, etype):
 """Helper to get entities for a given type."""

        r = fapi.get_entities(self.namespace, self.name,
                              etype, self.api_url)
        fapi._check_response_code(r, 200)
        return [Entity(e['entityType'], e['name'], e['attributes'])
                for e in r.json()]