{

public:

GSimpleInterface();

~GSimpleInterface();

const Long64_t GetEntries() {return fNEntries;};

const int GetRun() {return fRun;};

const void SetRun(int run) {fRun = run;};

const float GetPOT() {return fPOT;};

const TLorentzVector GetNuPosition() {return fNuPos;};

const TLorentzVector GetNuMomentum() {return fNuMom;};

void SetRootFile(TFile* rootFileName);

bool FillMCFlux(Long64_t ientry, simb::MCFlux& mcflux);

private:

TTree* fFluxTree;

TTree* fMetaTree;

genie::flux::GSimpleNtpEntry* fGSimpleEntry;

genie::flux::GSimpleNtpNuMI* fGSimpleNuMI;

genie::flux::GSimpleNtpAux* fGSimpleAux;

genie::flux::GSimpleNtpMeta* fGSimpleMeta;

Long64_t fNEntries;

int fRun;

float fPOT;

TLorentzVector fNuPos;

TLorentzVector fNuMom;