ReadonlycodeWhat went wrong, stable across versions, for programs to act on.
ReadonlydetailsFacts a program can act on, such as why a sign-in failed or which certificate did not verify.
ReadonlyserverThe server's reply code, when the server gave one.
ReadonlytransientTrue when trying again, on a fresh connection, may succeed.
The error type of the engine.
codeis stable across versions;messageis written for people and never contains a secret.