问如何将整个类保存在以哈希输入命名的文件中？

EN

    class class_1(a,b):

       def __init__(self):
           self.a = a
           self.b = b

       def load_class(self):
           hashed_input = ...
           if os.path.isdir('data/'+hashed_input):
               ...load out....
           else: self.calc_out()

       def calc_out(self):

       ...takes an hour...


       def save_class(self):
           hashed_input = ...
           dir = '/data/'+hashed_input
           import pathlib
           pathlib.Path(dir).mkdir(parents=True, exist_ok=True)
           np.savez('dir/File.npz', out=self.out)


    args = {a:1, b:2}
    foo = class_1(**args)
    foo.save_class()