Is there a way to pass CallOptions to the client ctor?

[gkinsman]

Hi there!

Thanks so much for this project - the promise based client generation is fantastic.

I can see that it's possible to pass an interceptor or interceptor provider to a call as it accepts a CallOptions:

const result = await client.Get(GetFooRequest.fromObject({ fooId }), {
	interceptor_providers: myProvider
})

but I was wondering if it's possible to also pass a CallOptions object to the client constructor so that all calls made through a client are intercepted.

According to the grpc-js docs, this should be possible, although I'm struggling to reconcile that with the grpc-js code - it seems that makeGenericClientConstructor accepts a classOptions but it's untyped and apparently unused from what I can see...but I think I'm missing something.

Is this a supported scenario?

Thanks!