def get_endpoint(self):
        service_type = self.service_type
        service_name = self.service_name
        service_region = self.service_region

        if self._ex_force_service_type:
            service_type = self._ex_force_service_type
        if self._ex_force_service_name:
            service_name = self._ex_force_service_name
        if self._ex_force_service_region:
            service_region = self._ex_force_service_region

        endpoint = self.service_catalog.get_endpoint(service_type=service_type,
                                                     name=service_name,
                                                     region=service_region)

        url = endpoint.url

        if not url:
            raise LibcloudError('Could not find specified endpoint')

        return url
Selects the endpoint to use based on provider specific values,
dataset/ETHPy150Open apache/libcloud/libcloud/common/openstack.py/OpenStackBaseConnection.get_endpoint