export declare const strToKey: (name: string) => AdvisoryKey;
type AdvisoryKey = [number, number];
interface CreateMutexFunction {
    (lockName: string): AdvisoryLock;
}
type WithLockFunction = (fn: () => Promise<unknown>) => Promise<unknown>;
type UnlockFn = () => Promise<void>;
interface AdvisoryLock {
    lock: () => Promise<UnlockFn>;
    unlock: UnlockFn;
    tryLock: () => Promise<UnlockFn | undefined>;
    withLock: WithLockFunction;
}
declare const _default: (conString: string) => CreateMutexFunction;
export default _default;