import { ElementRef, EventEmitter, OnDestroy } from '@angular/core';
import { DropdownDirective } from './dropdown.directive';
export declare class DropdownToggleDirective implements OnDestroy {
    elementRef: ElementRef;
    private dropdown;
    isOpenChange: EventEmitter<boolean>;
    isDisabled: boolean;
    isOpen: boolean;
    onClick(event: any): void;
    onEsc(): void;
    constructor(elementRef: ElementRef, dropdown: DropdownDirective);
    ngOnDestroy(): void;
}