import { VudDropdownToggleDirective } from './dropdown-toggle.directive';
import * as i0 from "@angular/core";
export declare class VudDropdownDirective {
    private isOpenSubject;
    readonly isOpen$: import("rxjs").Observable<boolean>;
    readonly toggler?: VudDropdownToggleDirective;
    handleKeyDown(event: KeyboardEvent): void;
    set isOpen(value: boolean);
    get isOpen(): boolean;
    toggle(): void;
    close(): void;
    open(): void;
    static ɵfac: i0.ɵɵFactoryDeclaration<VudDropdownDirective, never>;
    static ɵdir: i0.ɵɵDirectiveDeclaration<VudDropdownDirective, "[vudDropdown]", ["vudDropdown"], { "isOpen": { "alias": "isOpen"; "required": false; }; }, {}, ["toggler"], never, true, never>;
    static ngAcceptInputType_isOpen: unknown;
}