import { DownloadOptions, VideoInfo } from './models';
import LRU from 'lru-cache';
/**
 * Gets info from a video without getting additional formats.
 */
export declare const _getBasicInfo: (id: string, options?: DownloadOptions) => Promise<VideoInfo>;
/**
 * Gets info from a video additional formats and deciphered URLs.
 */
export declare const _getFullInfo: (id: string, options?: DownloadOptions) => Promise<VideoInfo>;
export declare const cache: LRU<unknown, unknown>;
export declare const getBasicInfo: (id: string, options?: DownloadOptions) => Promise<VideoInfo>;
export declare const getFullInfo: (id: string, options?: DownloadOptions) => Promise<VideoInfo>;
export declare const validateID: (id: string) => boolean;
export declare const validateURL: (string: string) => boolean;
export declare const getURLVideoID: (link: string) => string | Error;
export declare const getVideoID: (str: string) => string | Error;