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* GH-740: optimize imports by rain1024 in https://github.com/undertheseanlp/underthesea/pull/741
* GH-616: remove issue-manager workflow by rain1024 in https://github.com/undertheseanlp/underthesea/pull/726
* GH-233: Add lang_detect module by rain1024 in https://github.com/undertheseanlp/underthesea/pull/733