import { InjectionToken } from '@angular/core';
export declare const REST_SERVER_HOST: InjectionToken<string>;
export declare const FIREBASE_INFO: InjectionToken<any>;
export declare const SCHOOLBELLE_LOGIN_FRONT_HOST: InjectionToken<string>;
export declare class SurveyTokensModule {
    static forRoot(ENV: {
        serverHost?: string;
        firebase: any;
        schoolbelleLoginFrontHost: string;
    }): {
        ngModule: typeof SurveyTokensModule;
        providers: {
            provide: InjectionToken<any>;
            useValue: any;
        }[];
    };
}