public com.google.cloud.visionai.v1.Annotation getAnnotation() {
      if (annotationBuilder_ == null) {
        return annotation_ == null
            ? com.google.cloud.visionai.v1.Annotation.getDefaultInstance()
            : annotation_;
      } else {
        return annotationBuilder_.getMessage();
      }
    }
<pre>
Required. The annotation to create.
</pre>

<code>
.google.cloud.visionai.v1.Annotation annotation = 2 [(.google.api.field_behavior) = REQUIRED];
</code>

@return The annotation.
java-visionai/proto-google-cloud-visionai-v1/src/main/java/com/google/cloud/visionai/v1/CreateAnnotationRequest.java