import { Injector, ComponentFactoryResolver } from '@angular/core';
import { ModalOptions } from './modal-options.model';
import { RebirthNGConfig } from '../rebirth-ng.config';
import { Observable } from 'rxjs';
export declare class ModalService {
    private rebirthNGConfig;
    private componentFactoryResolver;
    private injector;
    private instances;
    constructor(rebirthNGConfig: RebirthNGConfig, componentFactoryResolver: ComponentFactoryResolver, injector: Injector);
    open<T>(options: ModalOptions): Observable<T>;
    closeAll(): void;
    private close(modalRef);
}