ptan cannot be used properly

[Lyric233-QS]

hello,
I'm a reinforcement learning novice, recently I'm studying your Deep Reinforcement Learning in Practice 2nd Edition, in the chapter 7 part, I need to use ptan, I install the tutorial on gitub, and I use pip install ptan in the anaconda environment, and I successfully install ptan==0.8, and when I import ptan in a python file, it reports the error :
file “ptan\agent.py”,line 14,in States = tt.List[np.ndarray] | np.ndarray TypeError: unsupported operand type(s) for |: '_GenericAlias' and 'type'
My system configuration environment is exactly as requested in your requirements.txt.
gymnasium[atari]>=0.29.0
gymnasium[classic-control]>=0.29.0
moviepy==1.0.3
numpy==1.26.3
opencv-python==4.9.0.80
torch==2.3.1
torchvision==0.18.1
pytorch-ignite==0.4.13
stable-baselines3==2.2.1
pyarrow==15.0.0