@java.lang.Override
  public Builder toBuilder() {
    return this == DEFAULT_INSTANCE ? new Builder() : new Builder().mergeFrom(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