Repository: truera/trulens
Issue: TypeError: Parameters to generic types must be types. Got Ellipsis. in asynchro.py
Root cause: External Dependency Breakage

I'm using Python 3.9.13 and trulens-eval==0.21.0 and by simply calling `from trulens_eval import Tru` i got the error
`TypeError: Parameters to generic types must be types. Got Ellipsis.` from [trulens_eval/utils/asynchro.py:68](https://github.com/truera/trulens/blob/96c07cd7babdb7e7479de140e95258fd1cfbc968/trulens_eval/trulens_eval/utils/asynchro.py#L68). Using trulens-eval==0.20.3 does not yielding to that error.


Only executing this code, which should be similar to your implementation, yields to the respective error:
```
from typing import Callable, Awaitable, Union, TypeVar

A = TypeVar("A")
B = TypeVar("B")
T = TypeVar("T")

CallableMaybeAwaitable = Union[Callable[[A], B], Callable[[A], Awaitable[B]]]

CallableMaybeAwaitable = Callable[..., Awaitable[T]]

CallableMaybeAwaitable[..., T]
```

```
TypeError                                 Traceback (most recent call last)
Cell In[17], line 1
----> 1 CallableMaybeAwaitable[..., T]

File ~\\AppData\\Local\\Programs\\Python\\Python39\\lib\\typing.py:277, in _tp_cache.<locals>.decorator.<locals>.inner(*args, **kwds)
    275 except TypeError:
    276     pass  # All real errors (not unhashable args) are raised below.
--> 277 return func(*args, **kwds)

File ~\\AppData\\Local\\Programs\\Python\\Python39\\lib\\typing.py:767, in _GenericAlias.__getitem__(self, params)
    765     params = (params,)
    766 msg = \"Parameters to generic types must be types.\"
--> 767 params = tuple(_type_check(p, msg) for p in params)
    768 _check_generic(self, params, len(self.__parameters__))
    770 subst = dict(zip(self.__parameters__, params))

File ~\\AppData\\Local\\Programs\\Python\\Python39\\lib\\typing.py:767, in <genexpr>(.0)
    765     params = (params,)
    766 msg = \"Parameters to generic types must be types.\"
--> 767 params = tuple(_type_check(p, msg) for p in params)
    768 _check_generic(self, params, len(self.__parameters__))
    770 subst = dict(zip(self.__parameters__, params))

File ~\\AppData\\Local\\Programs\\Python\\Python39\\lib\\typing.py:166, in _type_check(arg, msg, is_argument, module, allow_special_forms)
    164     return arg
    165 if not callable(arg):
--> 166     raise TypeError(f\"{msg} Got {arg!r:.100}.\")
    167 return arg

TypeError: Parameters to generic types must be types. Got Ellipsis.
```

@piotrm0 can you take a look at this?

@JEwerszumrode - this should be fixed by #840 now merged into main. Please try installing from GitHub and let us know if this issue is resolved.

You can install the latest version from GitHub with the following commands:

```
pip uninstall trulens_eval -y # to remove existing PyPI version
pip install git+https://github.com/truera/trulens#subdirectory=trulens_eval
```

Missed some ellipses in earlier fix. Try this branch instead of current main:

```
pip uninstall trulens_eval -y # to remove existing PyPI version
pip install git+https://github.com/truera/trulens@piotrm/more_ellipses#subdirectory=trulens_eval
```

My branch is now merged into main, so ok to try that.