@java.lang.Override
  public com.google.cloud.visionai.v1.Annotation getAnnotation() {
    return annotation_ == null
        ? com.google.cloud.visionai.v1.Annotation.getDefaultInstance()
        : annotation_;
  }
<pre>
Required. The annotation to update.
The annotation's `name` field is used to identify the annotation to be
updated. Format:
`projects/{project_number}/locations/{location}/corpora/{corpus}/assets/{asset}/annotations/{annotation}`
</pre>

<code>
.google.cloud.visionai.v1.Annotation annotation = 1 [(.google.api.field_behavior) = REQUIRED];
</code>

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