name 'Accelerator' is not defined

[NeighborhoodCoding]

In your demo of colab,

I got this error... T.T help me...

---

NameError Traceback (most recent call last)
in ()
----> 1 from fastiqa.vqa import *
2
3 # modify the json files to point to your database locations
4 LSVQ = load_json('json/LSVQ.json')
5 LIVE_VQC = {

2 frames
/usr/local/lib/python3.7/dist-packages/fastai/distributed.py in DistributedTrainer()
142 "Wrap model in DistributedDataParallel and dls in DistributedDL"
143 order = 11
--> 144 @Delegates(Accelerator, but=_hidden_params)
145 def init(self,
146 sync_bn=True, # Whether to replace all batch norm with nn.SyncBatchNorm

NameError: name 'Accelerator' is not defined