code: function _splitProps (props) {
    var test = {}
  
    if (util.isString(props)) {
      props = props
        .split(',')
        .map(_segment(','))
        .filter(function (k) {
          return k
        })
    }
    if (util.isArray(props)) {
      props.forEach(function (key) {
        test[key] = 1
      })
      return test
    }
    return {}
  }
docs: split comma separated String or Array into a test hash
  @private
  @param {Array|String} keys
  @return {Object} obj for comparison