import type { AcquisitionOptions, LockConfig } from "./types.js";
/**
 * Applies backend defaults to user config for lock operations.
 * @see ./constants.ts for default values
 */
export declare function mergeBackendConfig(config: Pick<LockConfig, "ttlMs">): Required<Pick<LockConfig, "ttlMs">>;
/**
 * Applies retry/timeout defaults to acquisition options.
 * @see ./auto-lock.ts for usage in lock() helper
 */
export declare function mergeAcquisitionConfig(options: AcquisitionOptions | undefined): Omit<Required<AcquisitionOptions>, "signal"> & {
    signal?: AbortSignal;
};