Support for Polars Dataframe needed

[YuanfengZhang]

When dealing with large files, polars performs better than pandas, and it's becoming more and more popular... And 'to_csv' of pandas == 'write_csv' of polars. So is there any chance you can help with it? Thanks.

[YuanfengZhang]

polars.DataFrame.write_csv documentation: https://pola-rs.github.io/polars/py-polars/html/reference/api/polars.DataFrame.write_csv.html#polars.DataFrame.write_csv

[daler]

I don't have any plans at the moment for this, but pull requests + tests are very welcome!