Bug report

Bug description:

The public io.text_encoding() function is missing from io.__all__.

>>> import io
>>> "text_encoding" in io.__all___
False

CPython versions tested on:

3.10, 3.11, 3.12

Operating systems tested on:

macOS

Linked PRs

• gh-111356: Add missing documented objects to io.__all__ #111370
• [3.12] gh-111356: io: Add missing documented objects to io.__all__ (GH-111370) #111935
• [3.11] gh-111356: io: Add missing documented objects to io.__all__ (GH-111370) #111936