import { UmbTiptapToolbarActionButtonApiBase } from '../tiptap-toolbar-action-button-api-base.js';
import type { Editor } from '../../externals.js';
export default class UmbTiptapToolbarUndoExtensionApi extends UmbTiptapToolbarActionButtonApiBase {
    isActive: (editor?: Editor) => boolean;
    execute(editor?: Editor): void;
}