dataclasses.InitVar undocumented

[graingert]

Documentation

dataclasses.InitVar is mentioned in https://docs.python.org/3.14/library/dataclasses.html#init-only-variables but not itself documented or linkable to

Linked PRs

• gh-132111: Document dataclasses.InitVar #132446
• [3.13] gh-132111: Document dataclasses.InitVar (GH-132446) #132483

[Tapeline]

Hello, I would want to work on this)

[sobolevn]

@Tapeline Please, go ahead :)
Thanks!