| Name | Type | Description |
|---|---|---|
written_at* | datetime | None | Last observed write, or |
ttl_seconds | int | None | Default: NoneProvider retention window, if known. |
retention_at | datetime | None | Default: NoneLatest cache hit or write; falls back to |
retention_confidence | CacheConfidence | Default: 'expired' |
Set the last cache write time and optional retention countdown.
Whether the window is a maximum (expired)
or a minimum (may_be_cold), rather than an exact lifetime.
