{

gROOT->ProcessLine(".L testClasses.C+");

Event* event = 0;

TFile f("test.root","RECREATE");
TTree* tt = new TTree("tt","Test Tree");

tt->Branch("event","Event",&event);

for(int i=0;i<10;i++){
  event = new Event();
  for(int j=0;j<5;j++){
    Channel* channel = new Channel();
    for(int k=0;k<3;k++){
      channel.m_data.push_back(k);
    }
    event.m_channels.push_back(channel);
  }
  tt->Fill();
  delete event;
}

tt->Write();
f.Close();

}