Incorrect Russian filenames encoding after extraction by datasets.DownloadManager.download_and_extract()
Hi! This issue stems from the fact that `xwalk`, which is a streamable version of `os.walk`, doesn't support the `topdown` param due to `fsspec`'s `walk` also not supporting it, so fixing this issue could be tricky.  

@MalakhovIlyaPavlovich You can avoid the error by tweaking your data processing and not using this param. (and `Path.rename`, which also cannot be streamed) 
## Dataset viewer issue for 'MalakhovIlya/RuREBus'

**Link:** https://huggingface.co/datasets/MalakhovIlya/RuREBus

**Description**
Using os.walk(topdown=False) in DatasetBuilder causes following error:
Status code:   400
Exception:     TypeError
Message:       xwalk() got an unexpected keyword argument 'topdown'
Couldn't find where "xwalk" come from. How can I fix this?

Am I the one who added this dataset ? Yes

Incorrect Russian filenames encoding after extraction by datasets.DownloadManager.download_and_extract() 
 ## Dataset viewer issue for 'MalakhovIlya/RuREBus'

**Link:** https://huggingface.co/datasets/MalakhovIlya/RuREBus

**Description**
Using os.walk(topdown=False) in DatasetBuilder causes following error:
Status code:   400
Exception:     TypeError
Message:       xwalk() got an unexpected keyword argument 'topdown'
Couldn't find where "xwalk" come from. How can I fix this?

Am I the one who added this dataset ? Yes
 
 Hi! This issue stems from the fact that `xwalk`, which is a streamable version of `os.walk`, doesn't support the `topdown` param due to `fsspec`'s `walk` also not supporting it, so fixing this issue could be tricky.  

@MalakhovIlyaPavlovich You can avoid the error by tweaking your data processing and not using this param. (and `Path.rename`, which also cannot be streamed) 