import * as i0 from "@angular/core";
export declare class GroupRowsService {
    static doGroupRows<T>(data: T[], groupRowsBy: string): any[];
    static ɵfac: i0.ɵɵFactoryDeclaration<GroupRowsService, never>;
    static ɵprov: i0.ɵɵInjectableDeclaration<GroupRowsService>;
}
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