code: function Log (name, opts) {
    if (!(this instanceof Log)) return new Log(name, opts)
    Object.assign(options,
      inspectOpts(process.env),
      inspectNamespaces(process.env)
    )
    LogBase.call(this, name, Object.assign({}, options, opts))
    const colorFn = (n) => chalk.hex(n)
    this.color = selectColor(name, colorFn)
    this.levColors = levelColors(colorFn)
    if (!this.opts.json) {
      this._log = this._logOneLine
    }
  }
docs: creates a new logger
  @constructor
  @param {String} name - namespace of Logger