cmsrel CMSSW_10_6_29
cd CMSSW_10_6_29/src
source script/env.sh # DO NOT run cmsenv
git clone git@github.com:ExtraYukawa/Script_ForMVA.git (one time setup)
cd Script_ForMVA

The DNN model and corresponding preprocessor (.pt and .onnx files) are trained in other code HiggsReco and imported to the data directory here. To automatically produce C++ code for DNN model(.dat and .hxx), please follow the steps below (not needed for standard DNN model, already produced for you)

cd data
root -l -b ../script/TMVA_SOFIE_ONNX.C\(\"DNN_Flav_MET_threeJet_model_v2.onnx\"\)