import pickle
from typing import Tuple

j = Tuple[()]
serialized = pickle.dumps(j)
loaded = pickle.loads(serialized)

Traceback (most recent call last):
  File "/Users/ryanthompson/PycharmProjects/learningProjects/dill_regression/regression_test.py", line 6, in <module>
    loaded = dill.loads(serialized)
  File "/Users/ryanthompson/.pyenv/versions/3.8.11/lib/python3.8/site-packages/dill/_dill.py", line 387, in loads
    return load(file, ignore, **kwds)
  File "/Users/ryanthompson/.pyenv/versions/3.8.11/lib/python3.8/site-packages/dill/_dill.py", line 373, in load
    return Unpickler(file, ignore=ignore, **kwds).load()
  File "/Users/ryanthompson/.pyenv/versions/3.8.11/lib/python3.8/site-packages/dill/_dill.py", line 646, in load
    obj = StockUnpickler.load(self)
  File "/Users/ryanthompson/.pyenv/versions/3.8.11/lib/python3.8/typing.py", line 804, in __getitem__
    return self.__getitem_inner__(params)
  File "/Users/ryanthompson/.pyenv/versions/3.8.11/lib/python3.8/typing.py", line 261, in inner
    return func(*args, **kwds)
  File "/Users/ryanthompson/.pyenv/versions/3.8.11/lib/python3.8/typing.py", line 830, in __getitem_inner__
    params = tuple(_type_check(p, msg) for p in params)
  File "/Users/ryanthompson/.pyenv/versions/3.8.11/lib/python3.8/typing.py", line 830, in <genexpr>
    params = tuple(_type_check(p, msg) for p in params)
  File "/Users/ryanthompson/.pyenv/versions/3.8.11/lib/python3.8/typing.py", line 149, in _type_check
    raise TypeError(f"{msg} Got {arg!r:.100}.")
TypeError: Tuple[t0, t1, ...]: each t must be a type. Got ().