python如何将动态创建类转储到文件

class DumpMeta(type):
    def __new__(cls, name, bases, attrs):
        return super().__new__(cls, name, bases, attrs)
    
    def __init__(cls, name, bases, attrs):
        super().__init__(name, bases, attrs)

import pickle

class DumpMeta(type):
    def __new__(cls, name, bases, attrs):
        return super().__new__(cls, name, bases, attrs)
    
    def __init__(cls, name, bases, attrs):
        super().__init__(name, bases, attrs)
        cls.dump_to_file()
    
    def dump_to_file(cls):
        with open('class_dump.pkl', 'wb') as file:
            pickle.dump(cls, file)

class MyClass(metaclass=DumpMeta):
    pass

class SubClass(MyClass):
    pass

class AnotherSubClass(MyClass):
    pass