import { Overlay } from "@angular/cdk/overlay";
import { Injector } from "@angular/core";
import { NzSingletonService } from "ng-zorro-antd/core/services";
import { NzMessageData, NzMessageDataOptions, NzMessageRef, NzMessageService } from "ng-zorro-antd/message";
import * as i0 from "@angular/core";
export declare class EoNgFeedbackMessageService extends NzMessageService {
    constructor(nzSingletonService: NzSingletonService, overlay: Overlay, injector: Injector);
    _createInstance(message: NzMessageData, options?: NzMessageDataOptions): NzMessageRef;
    static ɵfac: i0.ɵɵFactoryDeclaration<EoNgFeedbackMessageService, never>;
    static ɵprov: i0.ɵɵInjectableDeclaration<EoNgFeedbackMessageService>;
}