import { WebColumnDescription } from "./WebColumnDescription";
import { Type } from "./type";
/**
 * @hidden
 */
export declare class WebColumnGroupDescription extends WebColumnDescription {
    static $t: Type;
    protected get_type(): string;
    private static __canMarshalByValue1;
    private static __marshalByValueAlias1;
    constructor();
    private cw;
    children: WebColumnDescription[];
    private c0;
    collapsibleIndicatorTemplateRef: string;
}
