docs: function pick (obj, props) {
    var key
    var val
    var out
    var test = _splitProps(props)
  
    if (util.isObject(obj)) {
      out = {}
      for (key in test) {
        val = get(obj, key)
        if (val !== undefined && val !== null) {
          set(out, key, val)
        }
      }
    }
    return out
  }