benchmark

eedc53ee - Use `istype` in `unpack_iterable` / `lazily_unpack` (#193672)

Use `istype` in `unpack_iterable` / `lazily_unpack` (#193672) Summary: X-link: https://github.com/pytorch/pytorch/pull/193672 Approved by: https://github.com/hameerabbasi Reviewed By: izaitsevfb Differential Revision: D119278330 fbshipit-source-id: 11c7613da998280e5e778ce1f6ea870ce32bfc17