code: def AddDefaultMergers(self):
      
      self.AddMerger(AgencyMerger(self))
      self.AddMerger(StopMerger(self))
      self.AddMerger(RouteMerger(self))
      self.AddMerger(ServicePeriodMerger(self))
      self.AddMerger(FareMerger(self))
      self.AddMerger(ShapeMerger(self))
      self.AddMerger(TripMerger(self))
      self.AddMerger(FareRuleMerger(self))
docs: Adds the default DataSetMergers defined in this module.