sadf

root -l 1e1p_study.root 
.ls
root [0] 
Attaching file 1e1p_study.root as _file0...
Warning in <TClass::Init>: no dictionary for class larcv::EventImage2D is available
Warning in <TClass::Init>: no dictionary for class larcv::EventBase is available
Warning in <TClass::Init>: no dictionary for class larcv::Image2D is available
Warning in <TClass::Init>: no dictionary for class larcv::ImageMeta is available
Warning in <TClass::Init>: no dictionary for class larcv::Point2D is available
Warning in <TClass::Init>: no dictionary for class larcv::EventChStatus is available
Warning in <TClass::Init>: no dictionary for class larcv::EventROI is available
Warning in <TClass::Init>: no dictionary for class larcv::ROI is available
Warning in <TClass::Init>: no dictionary for class larcv::Vertex is available
Warning in <TClass::Init>: no dictionary for class larcv::EventPixel2D is available
Warning in <TClass::Init>: no dictionary for class larcv::EventPGraph is available
Warning in <TClass::Init>: no dictionary for class larcv::PGraph is available
(TFile *) 0x1b1ff50
root [1] .ls
TFile**         1e1p_study.root
 TFile*         1e1p_study.root
  KEY: TTree    NuFilterTree;1
  KEY: TTree    MCTree;1        MC infomation
  KEY: TTree    ShapeAnalysis;1
  KEY: TTree    GapAnalysis;1
  KEY: TTree    AngleAnalysis;1
  KEY: TTree    MatchAnalysis;1
  KEY: TTree    dQdSAnalysis;1
  KEY: TTree    CosmicAnalysis;1
  KEY: TTree    SecondShowerAnalysis;1
  KEY: TTree    VertexTree;1
  KEY: TTree    EventVertexTree;1
  KEY: TTree    LEE1e1pTree;1
  KEY: TTree    PGraphTruthMatch;1
  KEY: TTree    multipid_tree;1
  KEY: TTree    perceptron_tree;1
  KEY: TTree    ShowerQuality_DL;1
  KEY: TTree    EventMCINFO_DL;1
  KEY: TTree    EventAndyTree;1
  KEY: TTree    ShowerTruthMatch;1
  KEY: TTree    image2d_foo_tree;1      foo tree
  KEY: TTree    _recoTree;1     _recoTree
  KEY: TTree    TrackPGraphMatch;1
  KEY: TTree    TrackRecoAna;1
  KEY: TTree    TrackTruthMatch;1
root [2]