import { PluginKey } from '@milkdown/kit/prose/state';
export declare const grammarCheckDecoKey: PluginKey<any>;
/**
 * Milkdown plugin that shows a pulsing highlight decoration during grammar check.
 * Install this plugin on the editor to enable the loading animation.
 */
export declare const grammarCheckDecorationPlugin: import('@milkdown/utils').$Prose;