code: function (color) {
          return (color === 'off') || (color !== 'on') &&
              (Boolean(process.env.CI) || !process.stdout.isTTY); // eslint-disable-line no-process-env
      }
docs: A CLI utility helper method that checks for the non TTY compliance of the current run environment.
  
  color:     |  noTTY:
  'on'      -> false
  'off'     -> true
  otherwise -> Based on CI or isTTY.
  
  @param {String} color - A flag to indicate usage of the --color option.
  @returns {Boolean} - A boolean value depicting the result of the noTTY check.