import { AnyOpton } from './types';
export declare const isProd: boolean;
export declare const packagejson: () => AnyOpton;
export declare const setLogFilter_: (opt: Function) => void;
export declare function getErrorStack(data?: any[]): any;
export declare function getDefaultLogger(name: string): {
    infoLogger: any;
    accessLogger: any;
    errorLogger: any;
};