export interface RoutePushFailureState {
    consecutiveFailures: number;
    step: number;
    delayMs: number;
    retryAt: number;
    shouldReport: boolean;
}
/** In-memory retry state. A new runner process starts with no failed routes. */
export declare class RoutePushFailureBackoff {
    private readonly routes;
    failed(route: string, now: number): RoutePushFailureState;
    state(route: string): RoutePushFailureState | undefined;
    succeeded(route: string): void;
}
export interface PushRetryScheduler {
    setTimeout(callback: () => void, delayMs: number): unknown;
    clearTimeout(handle: unknown): void;
}
export declare const systemPushRetryScheduler: PushRetryScheduler;
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