def __init__(self, *args, **kwargs):
BaseDatabaseWrapper.__init__(self, *args, **kwargs)
self.server_version = None
self.features = DatabaseFeatures(self)
self.ops = DatabaseOperations(self)
self.client = DatabaseClient(self)
self.creation = DatabaseCreation(self)
self.introspection = DatabaseIntrospection(self)
self.validation = DatabaseValidation(self)
