Where do the models go in colab?
## Who can help
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## Information

Model I am using (Bert):

The problem arises when using:
* [ ] the official example scripts: (give details below)
* [.] my own modified scripts: (give details below)

The tasks I am working on is:
* [ ] an official GLUE/SQUaD task: (give the name)
* [.] my own task or dataset: (give details below)
Semeval 2017 task 10 keyword boundary detection

## To reproduce

Steps to reproduce the behavior:

1. Run `train.py` from [this repo](https://github.com/pranav-ust/BERT-keyphrase-extraction)
2. Load the model as `model = BertForTokenClassification.from_pretrained('bert-base-uncased', num_labels=len(params.tag2idx))`
3. Run `eval.py` as `python evaluate.py --data_dir data/task1/ --bert_model_dir model/ --model_dir experiments/base_model --restore_file best`

This gives the following error:
`Traceback (most recent call last):
  File "evaluate.py", line 117, in <module>
    config = BertConfig.from_json_file(config_path)
  File "/usr/local/lib/python3.6/dist-packages/transformers/configuration_utils.py", line 436, in from_json_file
    config_dict = cls._dict_from_json_file(json_file)
  File "/usr/local/lib/python3.6/dist-packages/transformers/configuration_utils.py", line 441, in _dict_from_json_file
    with open(json_file, "r", encoding="utf-8") as reader:
FileNotFoundError: [Errno 2] No such file or directory: 'model/bert_config.json'
2020-10-16 07:41:50.582535: I tensorflow/stream_executor/platform/default/dso_loader.cc:48] Successfully opened dynamic library libcudart.so.10.1
Loading the dataset...
   done.
Traceback (most recent call last):
  File "evaluate.py", line 117, in <module>
    config = BertConfig.from_json_file(config_path)
  File "/usr/local/lib/python3.6/dist-packages/transformers/configuration_utils.py", line 436, in from_json_file
    config_dict = cls._dict_from_json_file(json_file)
  File "/usr/local/lib/python3.6/dist-packages/transformers/configuration_utils.py", line 441, in _dict_from_json_file
    with open(json_file, "r", encoding="utf-8") as reader:
FileNotFoundError: [Errno 2] No such file or directory: 'model/bert_config.json'`

Which I believe is caused by me passing `model/` as `--bert-model-dir` argument.
Where do the downloaded models go on colab? Or more importantly, can I pass a path argument to download them in a specific folder?

### Edit
If I download a model as `!wget https://s3.amazonaws.com/models.huggingface.co/bert/bert-base-uncased.tar.gz` and extract it in the model/ folder, then `python eval.py` gives the following error:
`Loading the dataset...
    - done.
 Traceback (most recent call last):
       File "evaluate.py", line 118, in <module>
       model = BertForTokenClassification(config, num_labels=len(params.tag2idx))
TypeError: __init__() got an unexpected keyword argument 'num_labels'`
This issue has been automatically marked as stale because it has not had recent activity. It will be closed if no further activity occurs. Thank you for your contributions.
