export declare const proxyPolyfillCompat: {
    app: any;
    settings: any;
    defaultConfig: any;
    fetchTimeMillis: any;
    lastFetchStatus: any;
    activate: any;
    ensureInitialized: any;
    fetch: any;
    fetchAndActivate: any;
    getAll: any;
    getBoolean: any;
    getNumber: any;
    getString: any;
    getValue: any;
    setLogLevel: any;
};