@java.lang.Override
  public int hashCode() {
    if (memoizedHashCode != 0) {
      return memoizedHashCode;
    }
    int hash = 41;
    hash = (19 * hash) + getDescriptor().hashCode();
    if (hasCdnKey()) {
      hash = (37 * hash) + CDN_KEY_FIELD_NUMBER;
      hash = (53 * hash) + getCdnKey().hashCode();
    }
    if (hasUpdateMask()) {
      hash = (37 * hash) + UPDATE_MASK_FIELD_NUMBER;
      hash = (53 * hash) + getUpdateMask().hashCode();
    }
    hash = (29 * hash) + getUnknownFields().hashCode();
    memoizedHashCode = hash;
    return hash;
  }
<pre>
Required. The update mask applies to the resource.
For the `FieldMask` definition, see
https://developers.google.com/protocol-buffers/docs/reference/google.protobuf#fieldmask
</pre>

<code>.google.protobuf.FieldMask update_mask = 2 [(.google.api.field_behavior) = REQUIRED];
</code>
java-video-stitcher/proto-google-cloud-video-stitcher-v1/src/main/java/com/google/cloud/video/stitcher/v1/UpdateCdnKeyRequest.java