export declare enum LogLevel {
    DEBUG = 0,
    INFO = 1,
    WARN = 2,
    ERROR = 3,
    OFF = 4
}
export declare class Logger {
    private level;
    constructor(level?: LogLevel);
    setLevel(newLevel: LogLevel): void;
    debug(...msg: any[]): void;
    info(...msg: any[]): void;
    warn(...msg: any[]): void;
    error(...msg: any[]): void;
    private print;
    private prettify;
}