Optionalabortedtrue when the abort happened during the post-success rate-limit
pacing wait rather than while the request was in flight. The upstream
request itself succeeded in that case, so consumers can distinguish
"data was received but the caller's wait was cancelled" from a cancelled
request. Absent for every other abort.
OptionaltimeoutThe effective per-attempt timeout in milliseconds, when a timeout was configured and enforced.
Additional metadata attached to a transport failure.
See
AniLinkNetworkError.timeoutMs