import { OnDestroy, TemplateRef } from '@angular/core';
import { LayoutComponent } from '../layout/layout.component';
import { PanelContext } from '../types/panel-context';
export declare class CenterDirective implements OnDestroy {
    private readonly _layout;
    constructor(_layout: LayoutComponent, templateRef: TemplateRef<PanelContext>);
    ngOnDestroy(): void;
}