which represents the index of the first value to select while `end` represents
  the index of the last value to select. The number of values selected in each
  dimension is `end - begin` if `stride > 0` and `begin - end` if `stride < 0`.
  `begin` and `end` can be negative where `-1` is the last element, `-2` is
  the second to last. `begin_mask` controls whether to replace the explicitly