Per-bucket interval marker persistence instance interface. Used by Interval.file for once-per-interval signal firing.
A record's presence means the interval has already fired for that bucket+key. Soft-deleted records (removed=true) act as if absent, allowing the function to fire again.
Custom adapters should implement this interface to override the default file-based interval marker behavior.
waitForInit: (initial: boolean) => Promise<void>
Initialize storage for this bucket.
readIntervalData: (key: string) => Promise<IntervalData>
Read interval marker by key.
writeIntervalData: (data: IntervalData, key: string, when: Date) => Promise<void>
Write interval marker.
removeIntervalData: (key: string) => Promise<void>
Soft-delete a marker. After this call the function will fire again on the next IntervalFileInstance.run call for the same key.
listIntervalData: () => AsyncGenerator<string, any, any>
Iterate all non-removed marker keys for this bucket.