code: public com.google.cloud.datalabeling.v1beta1.NormalizedBoundingPolyOrBuilder
        getNormalizedBoundingPolyOrBuilder() {
      if (boundedAreaCase_ == 2) {
        return (com.google.cloud.datalabeling.v1beta1.NormalizedBoundingPoly) boundedArea_;
      }
      return com.google.cloud.datalabeling.v1beta1.NormalizedBoundingPoly.getDefaultInstance();
    }
docs: <code>.google.cloud.datalabeling.v1beta1.NormalizedBoundingPoly normalized_bounding_poly = 2;
  </code>