import { ColumnSortDescriptionDescription } from "./ColumnSortDescriptionDescription";
import { Type } from "./type";
/**
 * @hidden
 */
export declare class ColumnGroupDescriptionDescription extends ColumnSortDescriptionDescription {
    static $t: Type;
    protected get_type(): string;
    constructor();
    private l;
    get formatOverrideRef(): string;
    set formatOverrideRef(a: string);
    private k;
    get displayName(): string;
    set displayName(a: string);
    private m;
    get formatTextRef(): string;
    set formatTextRef(a: string);
}
