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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def AddDefaultMergers(self):
 """Adds the default DataSetMergers defined in this module."""

    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))