ReadonlyclientReadonlyfetchOptionalinit: RequestInitOptionalinit: RequestInitOptional ReadonlynowOptional ReadonlyrefreshRefresh this many ms before the token's actual expiry, to absorb the refresh request's own latency and clock skew between this client and the authorization server. Default 60s.
ReadonlystorageReadonlystorageStorage key this manager reads/writes. Callers running more than one
provider/account through the same TokenStorage must namespace this
themselves (e.g. "<provider>:<accountId>").
Readonlytoken
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