import { LocalLockItem, LockItemInfo, LockKey, MutexStackItem } from './interfaces';
import { MutexError } from './MutexError';
export declare function randomHash(): string;
export declare function isChildOf(key: string, parentKey: string): boolean;
export declare function singleKeysRelatedMatch(key1: string, key2: string): boolean;
export declare function keysRelatedMatch(key1: string[], key2: string[]): boolean;
export declare function sanitizeLock(input: any): LocalLockItem;
export declare function parseSingleLockKey(key: string): string;
export declare function parseLockKey(key: LockKey): string[];
export declare function prettyPrintLock(inputLock: LockItemInfo | MutexStackItem, spaces?: number, printTree?: boolean): void;
export declare function prettyPrintError(e: MutexError): void;
export declare function getLockInfo(queue: LocalLockItem[], hash: string): any;
export declare function searchBlockers(item: MutexStackItem, queue: MutexStackItem[], acc?: any[]): any[];
export declare function searchKiller(myStackItem: MutexStackItem, queue: MutexStackItem[]): any;
export interface DeadEndRetrierOptions {
    attemps: number;
    delay: number;
    cleanupCallback?: (e: MutexError) => void;
}
export declare const deadEndRetrierDefaultOptions: DeadEndRetrierOptions;
export declare function deadEndRetrier<T>(handler: () => Promise<T>, options?: Partial<DeadEndRetrierOptions>): Promise<T>;