public Endpoint CreateEndpoint(
        string projectId   = "my-project",
        string locationId  = "us-east1",
        string namespaceId = "test-namespace",
        string serviceId   = "test-service",
        string endpointId  = "test-endpoint")
    {
        RegistrationServiceClient registrationServiceClient = RegistrationServiceClient.Create();
        var serviceName = ServiceName.FromProjectLocationNamespaceService(projectId, locationId, namespaceId, serviceId);

        return(registrationServiceClient.CreateEndpoint(serviceName, new Endpoint(), endpointId));
    }