import { IElementDto } from '../model/ava-models';
export interface IExpansionState {
    [id: string]: boolean;
}
export declare class ExpandParentGroupService {
    expansionState: import("@angular/core").WritableSignal<IExpansionState | null>;
    constructor();
    expandParentGroups(element: IElementDto, flatElements: IElementDto[] | null, expansionState: {
        [id: string]: boolean;
    }): void;
}