import { InjectionToken } from '@angular/core';
import * as i0 from "@angular/core";
export declare class LService {
    private alpha;
    private beta;
    constructor(alpha: InjectionToken<string>, beta: InjectionToken<string>);
    y(data: string): Promise<string>;
    private w;
    static ɵfac: i0.ɵɵFactoryDeclaration<LService, never>;
    static ɵprov: i0.ɵɵInjectableDeclaration<LService>;
}
