import { Injector, ComponentFactoryResolver, ApplicationRef, Type } from '@angular/core';
import { ModalAbstract } from '../classes/modal.abstract';
import { ModalRef, ModalComponentRef, ModalActions, ModalOptions } from '../types/modal.types';
export declare class ModalService {
    private injector;
    private resolver;
    private appRef;
    activeModals: ModalRef[];
    constructor(injector: Injector, resolver: ComponentFactoryResolver, appRef: ApplicationRef);
    openModal(template: Type<ModalAbstract>, modalData?: any, actions?: ModalActions, options?: ModalOptions): any;
    closeModal(modal: ModalComponentRef): void;
    closeLast(): void;
    private createRef;
    private appendRefs;
}