moo.py

    SERVICE_CONFIG = json.dumps(
            {
                "methodConfig": [
                    {
                        "name": [{"service": ""}],
                        "retryPolicy": {
                            "maxAttempts": 5,
                            "initialBackoff": "1s",
                            "maxBackoff": "15s",
                            "backoffMultiplier": 2,
                            "retryableStatusCodes": ["UNAVAILABLE"],
                        },
                    }
                ],
                "loadBalancingConfig": [{"round_robin": {}}],
            }
        )
if self.config.tf_retry:
  options.append(("grpc.service_config", SERVICE_CONFIG))
  
self.channel = grpc.insecure_channel("hostname", options=options)