Using `git lfs clone` instead of `git clone` to clone this repo. `git clone` will only download part of the model checkpoint and cause the error: ``` _pickle.UnpicklingError: invalid load key, 'v' ``` More details can be seen in this [answer](https://stackoverflow.com/questions/33049688/what-causes-the-error-pickle-unpicklingerror-invalid-load-key).
