@java.lang.Override
  public int hashCode() {
    if (memoizedHashCode != 0) {
      return memoizedHashCode;
    }
    int hash = 41;
    hash = (19 * hash) + getDescriptor().hashCode();
    if (hasUpdateMask()) {
      hash = (37 * hash) + UPDATE_MASK_FIELD_NUMBER;
      hash = (53 * hash) + getUpdateMask().hashCode();
    }
    if (hasNode()) {
      hash = (37 * hash) + NODE_FIELD_NUMBER;
      hash = (53 * hash) + getNode().hashCode();
    }
    hash = (29 * hash) + getUnknownFields().hashCode();
    memoizedHashCode = hash;
    return hash;
  }
<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