### Summary When using tohdf5 on a root file, the trigger_mask parameter is not found in the event_info group of the resulting h5 file. ### Environment - KM3Pipe version (`km3pipe --version`): 8.16.0 - Python version (`python --version`): 2.7.16 - OS: (`uname -a`) Linux cca004 3.10.0-957.12.2.el7.x86_64 #1 SMP Tue May 14 21:24:32 UTC 2019 x86_64 x86_64 x86_64 GNU/Linux #### Additional information (The following are optional but may be relevant.) - HDF5 metadata (`h5info /path/to/relevant/file.h5`) - ROOT file metadata (`JPrintMeta -f /path/to/relevant/file.root`): - Jpp version (only if relevant, `JPrint -v`) ### Describe the current *bug* behavior trigger_mask is not event_info, even though it is present in the root file. ### Describe the expected *correct* behavior trigger_mask in event_info of the resulting h5 file. ### Steps to reproduce Download a file from irods, e.g. from /in2p3/km3net/data/trigger/JTR/KM3NeT_00000029/v0.3/2/, then use tohdf5 on it. ### Relevant logs and/or screenshots (Paste any relevant logs - please use code blocks (put the code between ```) to format console output, logs, and code as it's very hard to read otherwise.)