code: def islice(self, start, end):
          
          jdt_index = self._jdt_index.islice(start, end)
          return DateTimeIndex(jdt_index=jdt_index)
docs: Returns a new DateTimeIndex, containing a subslice of the timestamps in this index,
          as specified by the given integer start and end locations.
  
          Parameters
          ----------
          start : int
              The location of the start of the range, inclusive.
          end : int
              The location of the end of the range, exclusive.