code: def _ixs(self, i, axis=0):
          
          label = self.index[i]
          if isinstance(label, Index):
              return self.take(i, axis=axis)
          else:
              return self._get_val_at(i)
docs: Return the i-th value or values in the SparseSeries by location
  
          Parameters
          ----------
          i : int, slice, or sequence of integers
  
          Returns
          -------
          value : scalar (int) or Series (slice, sequence)