public com.google.cloud.vision.v1p3beta1.ListProductSetsResponse listProductSets(
        com.google.cloud.vision.v1p3beta1.ListProductSetsRequest request) {
      return io.grpc.stub.ClientCalls.blockingUnaryCall(
          getChannel(), getListProductSetsMethod(), getCallOptions(), request);
    }
<pre>
Lists ProductSets in an unspecified order.
Possible errors:
* Returns INVALID_ARGUMENT if page_size is greater than 100, or less
  than 1.
</pre>
java-vision/grpc-google-cloud-vision-v1p3beta1/src/main/java/com/google/cloud/vision/v1p3beta1/ProductSearchGrpc.java