public Builder setAnnotation(com.google.cloud.visionai.v1.Annotation.Builder builderForValue) {
      if (annotationBuilder_ == null) {
        annotation_ = builderForValue.build();
      } else {
        annotationBuilder_.setMessage(builderForValue.build());
      }
      bitField0_ |= 0x00000001;
      onChanged();
      return this;
    }
<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>
java-visionai/proto-google-cloud-visionai-v1/src/main/java/com/google/cloud/visionai/v1/UpdateAnnotationRequest.java