import { VegaSlimmer } from '../../../vega-slimmer/vega-slimmer-core';
import { VegaLeftNavGroup } from '../vega-left-nav-group/vega-left-nav-group';
import { Nullable } from '../../../types/general';
import { HTMLVegaLeftNavRoot } from '../interface';
export declare class VegaLeftNavHierarchyController extends VegaSlimmer {
  host: VegaLeftNavGroup['host'];
  private parent;
  componentWillLoad(): void;
  /**
   * Get the top parent
   *
   * @returns {Nullable<HTMLVegaLeftNavRoot>} the top parent
   */
  getTopParent(): Nullable<HTMLVegaLeftNavRoot>;
}
