construct_class_instance _construct_class_instance
clone_instance _clone_instance
rebless_instance rebless_instance_back rebless_instance_away
+ _force_rebless_instance _fixup_attributes_after_rebless
check_metaclass_compatibility _check_metaclass_compatibility
_check_class_metaclass_compatibility _check_single_metaclass_compatibility
_class_metaclass_is_compatible _single_metaclass_is_compatible