import { Observable } from 'rxjs';
import { EnvConfig } from './IBase';
import { BehaviorSubject } from 'rxjs';
import * as i0 from "@angular/core";
export declare class SocketIoService {
    private env;
    socket: any;
    readonly url: string;
    message$: BehaviorSubject<string>;
    constructor(env: EnvConfig);
    listen(eventName: string): Observable<unknown>;
    listen2(eventName: string): void;
    getNewMessage: (eventName: string) => Observable<string>;
    emit(eventName: string, data: any): void;
    static ɵfac: i0.ɵɵFactoryDeclaration<SocketIoService, never>;
    static ɵprov: i0.ɵɵInjectableDeclaration<SocketIoService>;
}