docs: improve doctests for ndarray instances in blas/ext/base/ndarray/gcusumkbn
#5540
| Job | Run time |
|---|---|
| 1m 17s | |
| 1m 17s |
blas/ext/base/ndarray/gcusumkbn
#5540
| Job | Run time |
|---|---|
| 1m 17s | |
| 1m 17s |