[tmva][sofie] explicit cast of senders and receivers to int64_t in GNN tutorial for safe run in mac

[sanjibansg]

This PR adds explicit casts of senders and receivers values in TMVA SOFIE GNN Tutorial to int64_t for safe run in mac.

[guitargeek]

LGTM! Thanks a lot for finding this solid workaround that makes the test green again.

Using import cppyy is a no-go, because it's a ROOT implementation detail. We have to find a different solution, which I'll try as soon as possible.

This PR though should be merged first to have passing tests, and then I can iterate on a real solution (possible in cppyy) with calm.

Can you maybe also try to fix tutorial-machine_learning-TMVA_SOFIE_RDataFrame-py? Thanks!

[guitargeek]

Can you maybe also try to fix tutorial-machine_learning-TMVA_SOFIE_RDataFrame-py? Thanks!

Actually all good! Thanks to your initial work, I could understand the problem and open a PR that fixes the underlying problem in cppyy:

• [cppyy] Treat long and long long buffer formats as interchangeable #23580

[sanjibansg]

Can you maybe also try to fix tutorial-machine_learning-TMVA_SOFIE_RDataFrame-py? Thanks!

Actually all good! Thanks to your initial work, I could understand the problem and open a PR that fixes the underlying problem in cppyy:

• [cppyy] Treat long and long long buffer formats as interchangeable #23580

Thanks for the implementation. Apologies, I wasn't very clear on the cppyy thing, but glad it all works now.