GH-137630: Convert _interpchannels to use Argument Clinic
#291654
| Job | Run time |
|---|---|
| 18s | |
| 5s | |
| 23s |
_interpchannels to use Argument Clinic
#291654
| Job | Run time |
|---|---|
| 18s | |
| 5s | |
| 23s |