/**
 * Native → JS event channel for background task fires. The native side
 * (BGTaskScheduler on iOS, WorkManager on Android) publishes a
 * BackgroundFireEvent when the OS wakes a task; JS subscribes via this shim
 * and routes to the registered handler in `background.ts`.
 *
 * Wire shape:
 *   { taskName: string, runId: string }
 *
 * `runId` is a native-generated UUID per fire. JS uses it when calling
 * `Background.completeTask(runId, success)` so the native side can pair the
 * completion with the right OS task instance (a periodic task can fire
 * concurrently with itself if the previous run is still pending).
 */
export interface BackgroundFireEvent {
    taskName: string;
    runId: string;
}
export declare function addBackgroundFireListener(cb: (event: BackgroundFireEvent) => void): () => void;
export declare const __FIRE_CHANNEL_FOR_TESTS = "__sigxBackgroundFire";
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