Error when import edward2

[codeOVO]

when i "import edward2 as ed" in .py file, error occurs:
-> from edward2.maps import robust_map
->retry_exception_types: list[type[Exception]] | None = ...
TypeError: unsupported operand type(s) for |: 'TypeVar' and'TypeVar'

this error occirs in maps.py file when its code is "list[U|V]"
my numpy is 1.21.6
python 3.7.3
tensorflow 2.11.0

[dustinvtran]

seems a python version issue https://stackoverflow.com/questions/76712720/typeerror-unsupported-operand-types-for-type-and-nonetype