import { RibbonGroupModel } from '@syncfusion/ej2-ribbon';
import { RibbonGroupBase } from '../ribbon-interfaces';
export declare const COMMENT_ID: string;
/**
 * Comments group implementation for Insert tab
 * @private
 */
export declare class CommentsGroup extends RibbonGroupBase {
    /**
     * Get the Ribbon items for Comments group
     * @returns {RibbonGroupModel} - Returns the Ribbon items for Comments group
     * @private
     */
    getGroupModel(): RibbonGroupModel;
    private newCommentHandler;
    /**
     * Update selection to reflect current state
     * @returns {void}
     * @private
     */
    updateSelection(): void;
    /**
     * @param {boolean} enable - Enable disable the comment
     * @returns {void}
     * @private
     */
    enableDisableComment(enable: boolean): void;
}