[i1] Implement packed_storage layout encoding attribute
#3199
| Job | Run time |
|---|---|
| 8s | |
| 17m 53s | |
| 18m 1s |
packed_storage layout encoding attribute
#3199
| Job | Run time |
|---|---|
| 8s | |
| 17m 53s | |
| 18m 1s |