export type ActivityTimeoutKind = 'idle' | 'max-runtime';
type ActivityWatchdogOptions = {
    idleTimeoutMs: number;
    maxRuntimeMs: number;
    onTimeout: (kind: ActivityTimeoutKind) => void;
};
export type ActivityWatchdog = {
    touch(): void;
    dispose(): void;
};
export declare function createActivityWatchdog(options: ActivityWatchdogOptions): ActivityWatchdog;
export {};
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