The following methods need to implement in src/vm/obj/objobject.

• object . __setattr__
• object . __lt__
• object . __le__
• object . __gt__
• object . __ge__
• object . __reduce_ex__
• object . __reduce__
• object . __subclasshook__
• object . __init_subclass__
• object . __format__
• object . __sizeof__
• object . __dir__
• object . __doc__