Missing types for zh-HANS and zh-HANT

[giannif]

Describe the bug
I see in the docs for target languages codes for zh-HANS and zh-HANT, but I don't see them in the types. I also see the zh-HANS in the response from translator.getTargetLanguages() but I don't see zh-HANT

To Reproduce
Compare the types and the docs.

Expected behavior
The types the documentation mention should be available in the package.