private com.google.protobuf.SingleFieldBuilderV3<
              com.google.cloud.vision.v1p4beta1.Product,
              com.google.cloud.vision.v1p4beta1.Product.Builder,
              com.google.cloud.vision.v1p4beta1.ProductOrBuilder>
          getProductFieldBuilder() {
        if (productBuilder_ == null) {
          productBuilder_ =
              new com.google.protobuf.SingleFieldBuilderV3<
                  com.google.cloud.vision.v1p4beta1.Product,
                  com.google.cloud.vision.v1p4beta1.Product.Builder,
                  com.google.cloud.vision.v1p4beta1.ProductOrBuilder>(
                  getProduct(), getParentForChildren(), isClean());
          product_ = null;
        }
        return productBuilder_;
      }
<pre>
The Product.
</pre>

<code>.google.cloud.vision.v1p4beta1.Product product = 1;</code>
java-vision/proto-google-cloud-vision-v1p4beta1/src/main/java/com/google/cloud/vision/v1p4beta1/ProductSearchResults.java