import { VegaSlimmer } from '../../../vega-slimmer/vega-slimmer-core';
import { VegaAccordion } from '../vega-accordion';
export declare class VegaAccordionExpandController extends VegaSlimmer {
  host: VegaAccordion['host'];
  groupId: VegaAccordion['groupId'];
  expand: VegaAccordion['expand'];
  expandEventEmitter: VegaAccordion['expandEventEmitter'];
  private observer;
  flipExpand(): void;
  onExpand(): void;
  registerObserver(): void;
  unregisterObserver(): void;
  private shouldCollapseSelfIfOtherExpand;
}
