Is there a way to define the Websocket protocol when using wsLink()

I am attempting to use tRPC with Azure's Pub/Sub Websockets service it appears to require custom protocols to be defined as explained here: https://learn.microsoft.com/en-us/azure/azure-web-pubsub/reference-json-webpubsub-subprotocol

They give the following code example:

var pubsub = new WebSocket('wss://test.webpubsub.azure.com/client/hubs/hub1', 'json.webpubsub.azure.v1');

How might this be done using:

const client = createWSClient({
    url: `wss://test.webpubsub.azure.com/client/hubs/hub1`,
  });