import type { ClipboardMapBundleEvent } from './types.js';
export type NativeDragMapResult = ClipboardMapBundleEvent & {
    fileName?: string;
    fileCount?: number;
};
/**
 * Recursively remove all attributes (except allowed ones) from an element
 * and its children. Removes IMG and BR elements entirely.
 */
export declare function sanitizeHtml(el: Element): void;
/**
 * Build a ClipboardMapBundleEvent from the drag event's dataTransfer items.
 * Returns null if we can't determine a suitable mapping event.
 */
export declare function buildMapBundleEvent(e: DragEvent): NativeDragMapResult | null;