Cannot Import BigBirdModel
### System Info

Copy-and-paste the text below in your GitHub issue and FILL OUT the two last points.

- `transformers` version: 3.0.2
- Platform: Linux-5.10.133+-x86_64-with-debian-9.9
- Python version: 3.6.6
- PyTorch version (GPU?): 1.4.0 (True)
- Tensorflow version (GPU?): 2.1.0 (True)
- Using GPU in script?: <fill in>
- Using distributed or parallel set-up in script?: <fill in>

### Who can help?

_No response_

### Information

- [X] The official example scripts
- [ ] My own modified scripts

### Tasks

- [X] An officially supported task in the `examples` folder (such as GLUE/SQuAD, ...)
- [ ] My own task or dataset (give details below)

### Reproduction

```
----> 2 from transformers import BigBirdTokenizer,BigBirdModel

ImportError: cannot import name 'BigBirdTokenizer'
```

```
----> 4 from transformers import (AlbertModel, AlbertTokenizer, BartModel, BigBirdModel, BigBirdTokenizer,
      5                           BartTokenizer, BertModel, BertTokenizer,
      6                           CamembertModel, CamembertTokenizer, CTRLModel,

ImportError: cannot import name 'BigBirdModel'
```

### Expected behavior

Model should get imported without the error
I don't think transformers version 3.0.2 contains the BigBird model. I think updating your version of the transformers package should solve the issue.
I also see that you are using Python version 3.6.6. The latest version of the transformers package requires Python >=3.7.0, so I guess you would also need to update your installed Python version. 
Hope this helps!<|||||>Which version does


On Wed, 7 Sep, 2022, 1:43 pm Manish Sridhar, ***@***.***>
wrote:

> I don't think transformers version 3.0.2 contains the BigBird model. I
> think updating your version of the transformers package should solve the
> issue.
>
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<|||||>@jaideep11061982 I believe the model was added in v4.5.0, but I think either @sgugger or @NielsRogge will be able to better comment on the exact version that you could use.<|||||>Yes, it was introduced in v4.5.0.

In general, please do not open issues without updating to some recent version of Transformers, v3.0.2 is more than two years old and bugs are fixed as continuous development of the new versions, so you need to upgrade to the latest releases to see the fixes anyway.<|||||>This issue has been automatically marked as stale because it has not had recent activity. If you think this still needs to be addressed please comment on this thread.

Please note that issues that do not follow the [contributing guidelines](https://github.com/huggingface/transformers/blob/main/CONTRIBUTING.md) are likely to be ignored.