import type { ContextPool } from './context-pool';
import type { YouTubeTranscriptResult } from '../types';
export declare const INTERNAL_TRANSCRIPT_USER_ID = "__yt_transcript__";
export declare function extractVideoId(url: string): string | null;
export declare function detectYtDlp(log: (...args: unknown[]) => void): Promise<void>;
export declare function hasYtDlp(): boolean;
export declare function ytDlpTranscript(reqId: string, url: string, videoId: string, lang: string, timeoutMs: number): Promise<YouTubeTranscriptResult>;
export declare function browserTranscript(reqId: string, url: string, videoId: string, lang: string, contextPool: ContextPool, timeoutMs: number): Promise<YouTubeTranscriptResult>;
export declare function parseJson3(content: string): string | null;
export declare function formatVttTs(ts: string): string;
export declare function parseVtt(content: string): string;
export declare function parseXml(content: string): string;
//# sourceMappingURL=youtube.d.ts.map