public com.google.common.util.concurrent.ListenableFuture<com.google.protobuf.Empty>
        deleteProductSet(com.google.cloud.vision.v1.DeleteProductSetRequest request) {
      return io.grpc.stub.ClientCalls.futureUnaryCall(
          getChannel().newCall(getDeleteProductSetMethod(), getCallOptions()), request);
    }
<pre>
Permanently deletes a ProductSet. Products and ReferenceImages in the
ProductSet are not deleted.
The actual image files are not deleted from Google Cloud Storage.
</pre>
java-vision/grpc-google-cloud-vision-v1/src/main/java/com/google/cloud/vision/v1/ProductSearchGrpc.java