private com.google.protobuf.SingleFieldBuilderV3<
            com.google.cloud.vision.v1.ProductSearchResults,
            com.google.cloud.vision.v1.ProductSearchResults.Builder,
            com.google.cloud.vision.v1.ProductSearchResultsOrBuilder>
        getProductSearchResultsFieldBuilder() {
      if (productSearchResultsBuilder_ == null) {
        productSearchResultsBuilder_ =
            new com.google.protobuf.SingleFieldBuilderV3<
                com.google.cloud.vision.v1.ProductSearchResults,
                com.google.cloud.vision.v1.ProductSearchResults.Builder,
                com.google.cloud.vision.v1.ProductSearchResultsOrBuilder>(
                getProductSearchResults(), getParentForChildren(), isClean());
        productSearchResults_ = null;
      }
      return productSearchResultsBuilder_;
    }
<pre>
If present, product search has completed successfully.
</pre>

<code>.google.cloud.vision.v1.ProductSearchResults product_search_results = 14;</code>
java-vision/proto-google-cloud-vision-v1/src/main/java/com/google/cloud/vision/v1/AnnotateImageResponse.java