import type { Firestore } from "@google-cloud/firestore";
import type { AcquisitionOptions, LockConfig } from "../common/types.js";
import type { FirestoreBackendOptions } from "./types.js";
/**
 * Creates distributed lock with Firestore backend
 * @param db - Firestore client instance
 * @param options - Retry, TTL, and collection config
 * @returns Auto-managed lock function (see: common/auto-lock.ts)
 */
export declare function createLock(db: Firestore, options?: FirestoreBackendOptions): <T>(fn: () => Promise<T> | T, config: LockConfig & {
    acquisition?: AcquisitionOptions;
}) => Promise<T>;
export { createFirestoreBackend } from "./backend.js";
export type { FirestoreBackendOptions, FirestoreConfig, LockDocument, } from "./types.js";