public com.google.cloud.visionai.v1.UserSpecifiedAnnotationOrBuilder
        getUserSpecifiedAnnotationOrBuilder() {
      if (userSpecifiedAnnotationBuilder_ != null) {
        return userSpecifiedAnnotationBuilder_.getMessageOrBuilder();
      } else {
        return userSpecifiedAnnotation_ == null
            ? com.google.cloud.visionai.v1.UserSpecifiedAnnotation.getDefaultInstance()
            : userSpecifiedAnnotation_;
      }
    }
<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