Override @c SchemaServiceClient Default Endpoint

 // This configuration is common with Private Google Access: // https://cloud.google.com/vpc/docs/private-google-access auto options = google::cloud::Options{}.set<google::cloud::EndpointOption>( "private.googleapis.com"); auto client = google::cloud::pubsub::SchemaServiceClient( google::cloud::pubsub::MakeSchemaServiceConnection(options));