Pyright reportPrivateImportUsage when `from datasets import load_dataset` 
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[]
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## Describe the bug
Pyright complains about module not exported. 

## Steps to reproduce the bug
Use an editor/IDE with Pyright Language server with default configuration:
```python
from datasets import load_dataset
```

## Expected results
No complain from Pyright

## Actual results
Pyright complain below:
```
`load_dataset` is not exported from module "datasets"
 Import from "datasets.load" instead [reportPrivateImportUsage] 
```
Importing from `datasets.load` does indeed solves the problem but I believe importing directly from top level `datasets` is the intended usage per the documentation.

## Environment info
- `datasets` version: 1.18.3
- Platform: macOS-12.2.1-arm64-arm-64bit
- Python version: 3.9.10
- PyArrow version: 7.0.0

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