default void deleteProduct(
        com.google.cloud.vision.v1p3beta1.DeleteProductRequest request,
        io.grpc.stub.StreamObserver<com.google.protobuf.Empty> responseObserver) {
      io.grpc.stub.ServerCalls.asyncUnimplementedUnaryCall(
          getDeleteProductMethod(), responseObserver);
    }
<pre>
Permanently deletes a product and its reference images.
Metadata of the product and all its images will be deleted right away, but
search queries against ProductSets containing the product may still work
until all related caches are refreshed.
Possible errors:
* Returns NOT_FOUND if the product does not exist.
</pre>
java-vision/grpc-google-cloud-vision-v1p3beta1/src/main/java/com/google/cloud/vision/v1p3beta1/ProductSearchGrpc.java