import { ComponentRef, Injector, TemplateRef } from "@angular/core";
import { ModalInstance } from "./ModalInstance";
import { IModalOptions } from "./IModalOptions";
import { NModalBackdropComponent } from "./components/public_components";
export declare abstract class ModalRenderer {
    abstract render<T>(type: Function, modalData: any, options: IModalOptions, layerNumber: number): ModalInstance<T>;
    abstract renderTemplate<T>(template: TemplateRef<any>, modalData: any, options: IModalOptions, layerNumber: number): ModalInstance<T>;
    abstract renderBackdrop(inj?: Injector): ComponentRef<NModalBackdropComponent>;
}