export declare const DEFAULT_HEARTBEAT_INTERVAL_MS = 600000;
export declare function worktreeRootFor(cwd: string): string | undefined;
export declare function touchWorktreeOccupancy(cwd: string, isCancelled?: () => boolean): Promise<void>;
export declare function startWorktreeOccupancyHeartbeat(cwd: string, intervalMs?: number): () => void;