id,node_id,number,title,user,state,locked,assignee,milestone,comments,created_at,updated_at,closed_at,author_association,active_lock_reason,draft,pull_request,body,reactions,performed_via_github_app,state_reason,repo,type
1659786592,I_kwDOAMm_X85i7lVg,7742,About save char into netcdf ,61818189,closed,0,,,4,2023-04-09T07:49:50Z,2023-04-11T06:36:27Z,2023-04-11T06:36:27Z,NONE,,,,"### What is your issue?

When I want to save char into netcdf, it will produce a new dimension. However I read this netcdf file with xarray, it can't find anything with this dimension.
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![image](https://user-images.githubusercontent.com/61818189/230760895-af2543b9-38f5-4a10-82bb-9f1745b2f187.png)
![image](https://user-images.githubusercontent.com/61818189/230760897-b9138987-4bc8-4c38-b56d-5cef913a40a1.png)
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