export declare function createExportIframe(title?: string): HTMLIFrameElement;
/**
 * Applies styles to an element and returns the previous styles.
 */
export declare function applyStyles(element: HTMLElement | SVGElement, styles: Record<string, string | null>): Record<string, string | null>;
/**
 * Copies the content of all canvases from the original element to the cloned element.
 */
export declare function copyCanvasesContent(original: Element, clone: Element): Promise<void[]>;