code: def validate_minmax_axis(axis):
      
      ndim = 1  # hard-coded for Index
      if axis is None:
          return
      if axis >= ndim or (axis < 0 and ndim + axis < 0):
          raise ValueError("`axis` must be fewer than the number of "
                           "dimensions ({ndim})".format(ndim=ndim))
docs: Ensure that the axis argument passed to min, max, argmin, or argmax is
      zero or None, as otherwise it will be incorrectly ignored.
  
      Parameters
      ----------
      axis : int or None
  
      Raises
      ------
      ValueError