def UpdateClass(self, class_name, gtfs_class):
    if class_name not in self._class_mapping:
      raise problems.NonexistentMapping(class_name)
    self._class_mapping[class_name] = gtfs_class
Updates an entry in the list of known classes.
dataset/ETHPy150Open google/transitfeed/transitfeed/gtfsfactory.py/GtfsFactory.UpdateClass