public static io.grpc.ServiceDescriptor getServiceDescriptor() {
    io.grpc.ServiceDescriptor result = serviceDescriptor;
    if (result == null) {
      synchronized (HealthCheckServiceGrpc.class) {
        result = serviceDescriptor;
        if (result == null) {
          serviceDescriptor =
              result =
                  io.grpc.ServiceDescriptor.newBuilder(SERVICE_NAME)
                      .setSchemaDescriptor(new HealthCheckServiceFileDescriptorSupplier())
                      .addMethod(getHealthCheckMethod())
                      .build();
        }
      }
    }
    return result;
  }
<pre>
HealthCheck method checks the health status of the cluster.
</pre>
java-visionai/grpc-google-cloud-visionai-v1/src/main/java/com/google/cloud/visionai/v1/HealthCheckServiceGrpc.java