accelerate

7aafa256 - Fix batch_size sanity check logic for `split_batches ` (#2344)

Fix batch_size sanity check logic for `split_batches ` (#2344) * fix * lets raise an error * Update error message Co-authored-by: Stas Bekman <stas00@users.noreply.github.com> * fix error message style --------- Co-authored-by: Stas Bekman <stas00@users.noreply.github.com>