declare const mediaExtensions: {
    readonly video: readonly [".webm", ".mp4"];
    readonly audio: readonly [".mp3"];
    readonly image: readonly [".jpg", ".jpeg", ".png", ".gif", ".webp"];
};
export declare function getMediaType(filename: string): keyof typeof mediaExtensions | null;
export declare function createMediaElement(src: string): HTMLImageElement | HTMLAudioElement | HTMLVideoElement | null;
export declare function isValidURL(str: string): boolean;
export declare function parseContent(content: string): HTMLImageElement | HTMLAudioElement | HTMLVideoElement | HTMLIFrameElement | HTMLDivElement;
export {};
