AttributeError: type object 'EncDecCTCModel' has no attribute 'list_available_models'
```
import nemo
import nemo.collections.asr as nemo_asr

asr_model = nemo_asr.models.EncDecCTCModel.list_available_models()
print("done")
```

Whenever I run this code, it gives me this error:
`AttributeError: type object 'EncDecCTCModel' has no attribute 'list_available_models'
`
I have all the dependencies installed.

When I hover over the line of code in PyCharm, it shows me the definition of the function and everything, which means it recognizes it. But for some reason it doesn't work when I run it.

<img width="1014" alt="image" src="https://user-images.githubusercontent.com/88787251/144137632-b741ba3a-c8c6-491b-bee7-01daeee7b3fa.png">
