export declare enum LogLevel {
    log = 0,
    info = 1,
    warn = 2,
    error = 3
}
export declare class Logger {
    static logLevel: LogLevel;
    static notifyCbs: ((info: string) => void)[];
    static log(...args: any[]): void;
    static info(...args: any[]): void;
    static warn(...args: any[]): void;
    static error(...args: any[]): void;
    static setLogLevel(l: LogLevel): void;
    static setNotification(fn: (info: string) => void): void;
    static defineLogLevel(level: LogLevel, data: any[]): void;
    static stringify(args: any[]): any;
}