Minimal analysis code based on SusyNt/Superflow.
Simply test via : makeMiniNtuple -n 1000 -f /gdata/atlas/ucintprod/SusyNt/n0208/mc15_n0208/user.dantrim.mc15_13TeV.410000.PowhegPythiaEvtGen_P2012_ttbar_hdamp172p5_nonallhad.SusyNt.p2372_n0208/ | grep -v "cannot open file|Unable to find"