declare class Logger {
    private _contextName;
    private _context;
    private _isOn;
    setState(isOn: boolean): Logger;
    /**
     * @param _context   - Context where logger is suppose to Log messages.
     */
    setContext(context: any): void;
    log(msg: string): void;
    group(label: string): void;
    groupEnd(): void;
    warning(msg: string): void;
    error(msg: string): void;
}
export default Logger;