🐛 Colab : type object 'pyarrow.lib.RecordBatch' has no attribute 'from_struct_array'
NONE
It's strange, after installing `nlp` on Colab, the `pyarrow` version seems fine from `pip` but not from python :

```python
import pyarrow

!pip show pyarrow
print("version = {}".format(pyarrow.__version__))
```

> Name: pyarrow
Version: 0.17.0
Summary: Python library for Apache Arrow
Home-page: https://arrow.apache.org/
Author: None
Author-email: None
License: Apache License, Version 2.0
Location: /usr/local/lib/python3.6/dist-packages
Requires: numpy
Required-by: nlp, feather-format
> 
> version = 0.14.1
2020-05-15T02:41:22Z
https://github.com/huggingface/datasets/issues/119#issuecomment-628993140
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2020-05-15T02:46:52Z
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NONE
Ok I just had to restart the runtime after installing `nlp`. After restarting, the version of `pyarrow` is fine.
2020-05-15T02:45:27Z
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2020-05-15T05:11:22Z
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I'm trying to load CNN/DM dataset on Colab.

[Colab notebook](https://colab.research.google.com/drive/11Mf7iNhIyt6GpgA1dBEtg3cyMHmMhtZS?usp=sharing)

But I meet this error :

> AttributeError: type object 'pyarrow.lib.RecordBatch' has no attribute 'from_struct_array'
