import { EventEmitter } from '@angular/core';
import { BehaviorSubject } from 'rxjs';
import * as i0 from "@angular/core";
export declare class HeadwindAccordionService {
    /** Emits to toggle opened status */
    toggleOpened: EventEmitter<void>;
    opened$: BehaviorSubject<boolean>;
    get opened(): boolean;
    set opened(value: boolean);
    static ɵfac: i0.ɵɵFactoryDeclaration<HeadwindAccordionService, never>;
    static ɵprov: i0.ɵɵInjectableDeclaration<HeadwindAccordionService>;
}