import type { RunState } from './types.js';
import type { RunStore } from './RunStore.js';
export declare const DEFAULT_RUN_LEASE_TTL_MS = 30000;
export declare function isRunLeaseStale(leaseExpiresAt: number | undefined, now: number): boolean;
export declare function takeRunLease(state: RunState, holder: string, ttlMs: number, now: number): void;
export declare function clearRunLease(state: RunState): void;
export declare function wrapWithRunLease(inner: RunStore, opts: {
    holder: string;
    ttlMs: number;
    now?: () => number;
}): RunStore;