Get and remove device credentials

We are trying to implement a user profile page where we want to have all the information about user’s authenticated devices. Also user can revoke access for particular device. When I call the endpoint|xyz I always get an empty list of device credentials while int he Auth0 dashboard I can see 19 refresh active tokens for this user. I am attaching the snapshot for reference please let me know if I am missing something. I have tried with type = public_key , refresh_token and rotating_refresh_token . Please provide any inputs to fetch a list of active devices