TypeError: 'type' object is not subscriptable

[1BIMU]

🐛 Bug

when I run codes below
from openhgnn.experiment import Experiment
experiment = Experiment(model='CompGCN', dataset='acm4GTN', task='node_classification', gpu=-1, lr=0.05, hidden_dim=64,
max_epoch=30, num_layers=3)
experiment.run()
I got failed. Traceback follows:
Traceback (most recent call last):
File "e:\OpenHgnn\OpenHGNN\main.py", line 1, in
from openhgnn.experiment import Experiment
File "e:\OpenHgnn\OpenHGNN\openhgnn_init_.py", line 4, in
from .trainerflow import *
File "e:\OpenHgnn\OpenHGNN\openhgnn\trainerflow_init_.py", line 117, in
from .HGMAE_trainer import HGMAE_trainer
File "e:\OpenHgnn\OpenHGNN\openhgnn\trainerflow\HGMAE_trainer.py", line 12, in
from ..models.hgmae import LogReg,HGMAE
File "e:\OpenHgnn\OpenHGNN\openhgnn\models\hgmae.py", line 539, in
class HAN(nn.Module):
File "e:\OpenHgnn\OpenHGNN\openhgnn\models\hgmae.py", line 592, in HAN
def forward(self, gs: list[dgl.DGLGraph], h, return_hidden=False):
TypeError: 'type' object is not subscriptable