'Get extra Specs details of the mentioned flavor.
For a full list of available parameters, please refer to the official
API reference:
https://developer.openstack.org/api-ref/compute/#list-extra-specs-for-a-flavor'

def list_flavor_extra_specs(self, flavor_id):

    (resp, body) = self.get(('flavors/%s/os-extra_specs' % flavor_id))
    body = json.loads(body)
    self.validate_response(schema_extra_specs.set_get_flavor_extra_specs, resp, body)
    return rest_client.ResponseBody(resp, body)
