Running test.py by loading your model checkpoint will generate the submission.csv file. The file should contain a header (already included in the script) and have the following format:
```
row_id,x,y
0,35.20940399169922,22.15359878540039
1,34.5449104309082,25.2341251373291
2,40.37540817260742,21.507827758789062
3,37.30218505859375,23.70339012145996
etc.
```