StrawberryShake Subscriptions websockets http handler or sse transport?

[jbockle]

I'm using SS + Microsoft.AspNetCore.Mvc.Testing for integration testing queries/mutations, but I can't seem to find a place to add handlers to the SS websocket client like I could previously do for SignalR HubConnectionBuilder. Is it possible to add another a custom http handler to a StrawberryShake client? Alternatively, could I use SSE instead of websockets?