public Builder clearProduct() {
        bitField0_ = (bitField0_ & ~0x00000001);
        product_ = null;
        if (productBuilder_ != null) {
          productBuilder_.dispose();
          productBuilder_ = null;
        }
        onChanged();
        return this;
      }
<pre>
The Product.
</pre>

<code>.google.cloud.vision.v1.Product product = 1;</code>
java-vision/proto-google-cloud-vision-v1/src/main/java/com/google/cloud/vision/v1/ProductSearchResults.java