private com.google.protobuf.SingleFieldBuilderV3<
            com.google.cloud.vision.v1p4beta1.FaceRecognitionParams,
            com.google.cloud.vision.v1p4beta1.FaceRecognitionParams.Builder,
            com.google.cloud.vision.v1p4beta1.FaceRecognitionParamsOrBuilder>
        getFaceRecognitionParamsFieldBuilder() {
      if (faceRecognitionParamsBuilder_ == null) {
        faceRecognitionParamsBuilder_ =
            new com.google.protobuf.SingleFieldBuilderV3<
                com.google.cloud.vision.v1p4beta1.FaceRecognitionParams,
                com.google.cloud.vision.v1p4beta1.FaceRecognitionParams.Builder,
                com.google.cloud.vision.v1p4beta1.FaceRecognitionParamsOrBuilder>(
                getFaceRecognitionParams(), getParentForChildren(), isClean());
        faceRecognitionParams_ = null;
      }
      return faceRecognitionParamsBuilder_;
    }
<pre>
Parameters for face recognition.
</pre>

<code>.google.cloud.vision.v1p4beta1.FaceRecognitionParams face_recognition_params = 10;
</code>
java-vision/proto-google-cloud-vision-v1p4beta1/src/main/java/com/google/cloud/vision/v1p4beta1/ImageContext.java