docs: improve doctests for ndarray instances in blas/ext/find-last-index
#31453
| Job | Run time |
|---|---|
| 2m 38s | |
| 2m 38s |
blas/ext/find-last-index
#31453
| Job | Run time |
|---|---|
| 2m 38s | |
| 2m 38s |