docs: static Node getNodeInfo(String serviceName) {
      String jvmName = ManagementFactory.getRuntimeMXBean().getName();
      Timestamp censusTimestamp = Timestamp.fromMillis(System.currentTimeMillis());
      return Node.newBuilder()
          .setIdentifier(getProcessIdentifier(jvmName, censusTimestamp))
          .setLibraryInfo(getLibraryInfo(OpenCensusLibraryInformation.VERSION))
          .setServiceInfo(getServiceInfo(serviceName))
          .build();
    }