public Builder clearUserSpecifiedAnnotation() {
      bitField0_ = (bitField0_ & ~0x00000002);
      userSpecifiedAnnotation_ = null;
      if (userSpecifiedAnnotationBuilder_ != null) {
        userSpecifiedAnnotationBuilder_.dispose();
        userSpecifiedAnnotationBuilder_ = null;
      }
      onChanged();
      return this;
    }
<pre>
User provided annotation.
</pre>

<code>.google.cloud.visionai.v1.UserSpecifiedAnnotation user_specified_annotation = 2;</code>
java-visionai/proto-google-cloud-visionai-v1/src/main/java/com/google/cloud/visionai/v1/Annotation.java