import { ApplicationRef, ComponentFactoryResolver, ComponentRef, Injector } from '@angular/core';
import { PortalInjector } from '../portal/portal-injector';
import { OverlayContainer } from '../overlay/overlay-container';
export interface ComponentType<T> {
    new (...args: any[]): T;
}
export declare class DomService {
    private readonly injector;
    private readonly appRef;
    private readonly overlayContainer;
    private readonly componentFactoryResolver;
    constructor(injector: Injector, appRef: ApplicationRef, overlayContainer: OverlayContainer, componentFactoryResolver: ComponentFactoryResolver);
    attachComponentPortal<T>(component: ComponentType<T>, injector?: PortalInjector): ComponentRef<T>;
    private readonly getComponentRootNode;
}