import { ComponentRef, ComponentFactoryResolver, ApplicationRef, Injector, Type } from '@angular/core';
import { NpDialog } from './dialog.component';
import { DialogConfig } from './dialog-config';
import { DialogRef } from './dialog-ref';
/**
 * @ignore
 */
export declare class DialogService {
    private componentFactoryResolver;
    private appRef;
    private injector;
    dialogComponentRef: ComponentRef<NpDialog>;
    constructor(componentFactoryResolver: ComponentFactoryResolver, appRef: ApplicationRef, injector: Injector);
    open(componentType: Type<any>, config: DialogConfig): DialogRef;
    private appendDialogComponentToBody;
    private removeDialogComponentFromBody;
}