public Builder setUpdateMask(com.google.protobuf.FieldMask.Builder builderForValue) {
      if (updateMaskBuilder_ == null) {
        updateMask_ = builderForValue.build();
      } else {
        updateMaskBuilder_.setMessage(builderForValue.build());
      }
      bitField0_ |= 0x00000002;
      onChanged();
      return this;
    }
<pre>
The list of fields to be updated. If left unset, all field paths will be
updated/overwritten.
</pre>

<code>.google.protobuf.FieldMask update_mask = 2;</code>
java-visionai/proto-google-cloud-visionai-v1/src/main/java/com/google/cloud/visionai/v1/UpdateSearchHypernymRequest.java