Continuously polls delegations until this request is approved or expired. Returns
a GrantedAccess object (view over the delegations) that can be used in the
invocations or can be saved in the agent (store) using .save() method.
Low level method and most likely you want to use .claim instead. This method will poll
fetch delegations just once and will return proofs matching to this request. Please note
that there may not be any matches in which case result will be { ok: [] }.
If you do want to continuously poll until request is approved or expired, you should use
.claim method instead.
Represents a pending access request. It can be used to poll for the requested delegation.