OptionaldurationTime taken for the operation in milliseconds.
OptionalerrorError message if the operation failed.
OptionalexpirationThe credential's lifecycle state at the time of the operation.
Recorded in the audit log so an auditor can answer "was any credential
used while expired?" — which matters under a 'warn' policy or a grace
period, where such a use succeeds rather than failing loudly.
The type of operation performed.
OptionalsubsystemThe subsystem that accessed the credential.
Whether the operation succeeded.
Details logged for credential access.