type ReadGIFOptions = {
    signal?: AbortSignal;
};
/**
 * Download base64 encoded file
 * Only works in browser environment
 */
export declare const downloadBase64File: (base64: string, fileName?: string) => void;
/**
 * Read GIF file as ArrayBuffer from URL with caching.
 * Only works in browser environments.
 */
export declare const readGIFAsArrayBuffer: (url: string, options?: ReadGIFOptions) => Promise<ArrayBuffer>;
/**
 * Clear GIF cache and abort all in-flight shared requests.
 */
export declare const clearGIFCache: () => void;
export declare const clearQRCodeGIFCache: () => void;
export {};