interface Window { YT: typeof YT; onYouTubeIframeAPIReady: () => void; } declare namespace YT { class Player { constructor( elementId: HTMLElement, options: { height: string; width: string; videoId: string; playerVars?: { autoplay?: number; controls?: number; rel?: number; modestbranding?: number; start?: number; }; events?: { onReady?: () => void; onError?: (event: { data: number }) => void; }; }, ); loadVideoById(options: { videoId: string; startSeconds?: number }): void; getCurrentTime(): number; destroy(): void; } }