code: def argmin(self, axis=None, skipna=True, *args, **kwargs):
          
          nv.validate_argmin(args, kwargs)
          nv.validate_minmax_axis(axis)
  
          i8 = self.asi8
          if self.hasnans:
              mask = self._isnan
              if mask.all() or not skipna:
                  return -1
              i8 = i8.copy()
              i8[mask] = np.iinfo('int64').max
          return i8.argmin()
docs: Returns the indices of the minimum values along an axis.
  
          See `numpy.ndarray.argmin` for more information on the
          `axis` parameter.
  
          See Also
          --------
          numpy.ndarray.argmin