export = ArtplayerPluginIframe export as namespace ArtplayerPluginIframe; interface Message { type: string data: any id?: number } declare class ArtplayerPluginIframe { constructor(option: { iframe: HTMLIFrameElement, url: string }) static iframe: boolean static postMessage(message: Message): void static onMessage(event: MessageEvent & { data: Message }): void static inject(): void readonly promises: Record readonly injected: boolean readonly destroyed: boolean readonly $iframe: HTMLIFrameElement readonly url: string readonly messageCallback: (...args: any[]) => any onMessage(event: MessageEvent & { data: Message }): void postMessage(message: Message): Promise commit any>(callback: T): Promise> message(callback: (...args: any[]) => any): void destroy(): void }