feat: generalize autogram.Engine (non-batched support)
#1686
| Job | Run time |
|---|---|
| 43s | |
| 1m 5s | |
| 1m 58s | |
| 1m 56s | |
| 2m 30s | |
| 1m 18s | |
| 2m 2s | |
| 2m 23s | |
| 1m 47s | |
| 1m 57s | |
| 2m 23s | |
| 1m 28s | |
| 2m 45s | |
| 2m 10s | |
| 1m 18s | |
| 27m 43s |