private void maybeForceBuilderInitialization() {
      if (com.google.protobuf.GeneratedMessageV3.alwaysUseFieldBuilders) {
        getImageFieldBuilder();
        getFeaturesFieldBuilder();
        getImageContextFieldBuilder();
      }
    }
<pre>
Request for performing Google Cloud Vision API tasks over a user-provided
image, with user-requested features, and with context information.
</pre>

Protobuf type {@code google.cloud.vision.v1p4beta1.AnnotateImageRequest}
java-vision/proto-google-cloud-vision-v1p4beta1/src/main/java/com/google/cloud/vision/v1p4beta1/AnnotateImageRequest.java