Sum of MC weights + MC normalisation
The way to retrieve the sum of MC weights and the sample cross-section should be understood and implemented if needed. This is probably accessible through https://gitlab.cern.ch/easyjet/easyjet/-/blob/master/EasyjetHub/python/steering/main_sequence_config.py#L59 https://gitlab.cern.ch/atlas/athena/-/blob/main/Event/EventBookkeeperTools/Root/CutFlowSvc.cxx#L225