public final OperationCallable<UpdateNetworkPeeringRequest, NetworkPeering, OperationMetadata>
      updateNetworkPeeringOperationCallable() {
    return stub.updateNetworkPeeringOperationCallable();
  }
Modifies a `NetworkPeering` resource. Only the `description` field can be updated. Only fields
specified in `updateMask` are applied. NetworkPeering is a global resource and location can
only be global.

<p>Sample code:

<pre>{@code
// This snippet has been automatically generated and should be regarded as a code template only.
// It will require modifications to work:
// - It may require correct/in-range values for request initialization.
// - It may require specifying regional endpoints when creating the service client as shown in
// https://cloud.google.com/java/docs/setup#configure_endpoints_for_the_client_library
try (VmwareEngineClient vmwareEngineClient = VmwareEngineClient.create()) {
  UpdateNetworkPeeringRequest request =
      UpdateNetworkPeeringRequest.newBuilder()
          .setNetworkPeering(NetworkPeering.newBuilder().build())
          .setUpdateMask(FieldMask.newBuilder().build())
          .setRequestId("requestId693933066")
          .build();
  OperationFuture<NetworkPeering, OperationMetadata> future =
      vmwareEngineClient.updateNetworkPeeringOperationCallable().futureCall(request);
  // Do something.
  NetworkPeering response = future.get();
}
}</pre>
java-vmwareengine/google-cloud-vmwareengine/src/main/java/com/google/cloud/vmwareengine/v1/VmwareEngineClient.java