/**
 * Paste as plain text.
 * @private
 * @param {ClipboardEvent} e The event
 * @returns {string|null} The updated pasted data
 */
export declare function handlePasteAsPlainText(e?: ClipboardEvent): string | null;
/**
 * Paste as Html.
 * @private
 * @param {ClipboardEvent} e The event
 * @returns {string|null} The updated pasted data
 */
export declare function handlePasteAsHtml(e?: ClipboardEvent): string | null;