code: function _getOption(optToGet, options, isBool, defaultValue) {
    const envVar = `MOCHAWESOME_${optToGet.toUpperCase()}`;
    if (options && typeof options[optToGet] !== 'undefined') {
      return (isBool && typeof options[optToGet] === 'string')
        ? options[optToGet] === 'true'
        : options[optToGet];
    }
    if (typeof process.env[envVar] !== 'undefined') {
      return isBool
        ? process.env[envVar] === 'true'
        : process.env[envVar];
    }
    return defaultValue;
  }
docs: Retrieve the value of a user supplied option.
  Falls back to `defaultValue`
  Order of precedence
  1. User-supplied option
  2. Environment variable
  3. Default value
  
  @param {string} optToGet  Option name
  @param {object} options  User supplied options object
  @param {boolean} isBool  Treat option as Boolean
  @param {string|boolean} defaultValue  Fallback value
  
  @return {string|boolean}  Option value