import type { FencedLease, LeaseRequest } from './contract.js';
export interface FencedLeaseRequest extends LeaseRequest {
    workloadId: string;
}
export type InMemoryFenceRefusal = 'invalid-request' | 'scope-conflict' | 'stale-fence' | 'expired-fence' | 'unknown-lease';
export declare class InMemoryFenceReferenceError extends Error {
    readonly reason: InMemoryFenceRefusal;
    constructor(reason: InMemoryFenceRefusal, detail: string);
}
/**
 * Unsigned, non-durable, single-process conformance reference.
 *
 * JavaScript executes each method without an await boundary, so compare,
 * validate, and mutate form one atomic critical section. Distributed adapters
 * must provide the same semantics with a CP store. This class cannot satisfy an
 * enforce-mode policy decision or authorize release/external side effects.
 */
export declare class InMemoryFencedLeaseReference {
    private readonly now;
    /** This model is local, unsigned, and never an enforce-mode policy authority. */
    readonly referenceOnly = true;
    private readonly leases;
    private readonly repositoryEpoch;
    constructor(now?: () => number);
    acquire(request: FencedLeaseRequest): FencedLease;
    renew(presented: FencedLease, ttlMs: number): FencedLease;
    release(presented: FencedLease): void;
    assertCurrentFence(presented: FencedLease): void;
    current(repositoryId?: string): FencedLease[];
    private assertStoredFence;
    private pruneExpired;
}
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