@java.lang.Override
  public void writeTo(com.google.protobuf.CodedOutputStream output) throws java.io.IOException {
    if (((bitField0_ & 0x00000001) != 0)) {
      output.writeMessage(1, getUpdateMask());
    }
    if (((bitField0_ & 0x00000002) != 0)) {
      output.writeMessage(2, getNode());
    }
    getUnknownFields().writeTo(output);
  }
<pre>
Required. The node. Only fields specified in update_mask are updated.
</pre>

<code>.google.cloud.tpu.v2alpha1.Node node = 2 [(.google.api.field_behavior) = REQUIRED];
</code>
java-tpu/proto-google-cloud-tpu-v2alpha1/src/main/java/com/google/cloud/tpu/v2alpha1/UpdateNodeRequest.java