import * as i0 from "@angular/core";
export declare class ChatService {
    $simpleChat: import("@angular/core").WritableSignal<{
        sender: string;
        message: string;
    } | null>;
    constructor();
    static ɵfac: i0.ɵɵFactoryDeclaration<ChatService, never>;
    static ɵprov: i0.ɵɵInjectableDeclaration<ChatService>;
}