[docs] [issue32752] no information about accessing typing.Generic type arguments

Ivan Levkivskyi <levkivskyi@gmail.com> added the comment:

3.7 is less convenient and less consistent

Taking into account that internal API is something one should never use, I don't think these terms apply here. Anyway, we will provide some helpers for external use in one of the next releases. ---------- _______________________________________ Python tracker <report@bugs.python.org> <https://bugs.python.org/issue32752> _______________________________________