def __assign_default_callbacks(self):
        for key in self.__consume_by_default:
            self.__callbacks[key] = self.__callback_default
        # Register default handler for event 'end' before assigning user defined callbacks to let users over write it.
        self.register_callback('end', self.__default_end_callback)
! Assigns default callback handlers
dataset/ETHPy150Open ARMmbed/htrun/mbed_host_tests/host_tests/base_host_test.py/HostTestCallbackBase.__assign_default_callbacks