private com.google.protobuf.RepeatedFieldBuilderV3<
            com.google.cloud.vision.v1p2beta1.FaceAnnotation.Landmark,
            com.google.cloud.vision.v1p2beta1.FaceAnnotation.Landmark.Builder,
            com.google.cloud.vision.v1p2beta1.FaceAnnotation.LandmarkOrBuilder>
        getLandmarksFieldBuilder() {
      if (landmarksBuilder_ == null) {
        landmarksBuilder_ =
            new com.google.protobuf.RepeatedFieldBuilderV3<
                com.google.cloud.vision.v1p2beta1.FaceAnnotation.Landmark,
                com.google.cloud.vision.v1p2beta1.FaceAnnotation.Landmark.Builder,
                com.google.cloud.vision.v1p2beta1.FaceAnnotation.LandmarkOrBuilder>(
                landmarks_, ((bitField0_ & 0x00000004) != 0), getParentForChildren(), isClean());
        landmarks_ = null;
      }
      return landmarksBuilder_;
    }
<pre>
Detected face landmarks.
</pre>

<code>repeated .google.cloud.vision.v1p2beta1.FaceAnnotation.Landmark landmarks = 3;</code>
java-vision/proto-google-cloud-vision-v1p2beta1/src/main/java/com/google/cloud/vision/v1p2beta1/FaceAnnotation.java