pub async fn access_token_refreshing() -> Option<String>Expand description
Compatibility token-only view of resolve_credential.
The underlying resolution proactively refreshes inside
REFRESH_SKEW_SECS, coalesces concurrent callers into one physical
credential read, and honors the PARSLEE_ACCESS_TOKEN process override.
New request-time consumers that also need the API base or expiry should use
resolve_credential so all authority fields come from one snapshot.