Allow Dynamic Retry Delay?

[emmanuj]

React Query currently allows functions for dynamically updating retry count:
retry: Boolean | Int | Function(failureCount, error) => shouldRetry | Boolean

I was wondering how one might handle dynamic retryDelay since that does not accept the error object:
retryDelay: Function(retryAttempt: Int) => Int

We could maybe use useState with retry to update retryDelay but I'm not sure that's a good solution.

Would it be possible to allow something like: retryDelay: Function(retryAttempt: Int, error: TError) => Int?
I can see this being useful for handling 429s. It's probably not a very common use case but just wondering.