docs: def first(self, n=1):
          """
          Get the first element of an array. Passing **n** will return the
          first N values in the array. Aliased as `head` and `take`.
          The **guard** check allows it to work with `_.map`.
          """
          res = self.obj[0:n]
          if len(res) is 1:
              res = res[0]
          return self._wrap(res)