Is there an example of how to type durable objects in the storage api?

ts
state: DurableObjectState;
webSockets: Set<WebSocket>;
storage: DurableObjectStorage;
constructor(state: DurableObjectState, env: Env) {
  this.state = state;
  this.storage = state.storage;
  this.webSockets = new Set();
}

I guess I'd want to define the type of stuff accessed through this.storage.get()/set()

The methods are generic so you'd just do

this.storage.get<T>(key, opts)

, etc