I am planning to release typing-extensions 4.1.0 sometime this weekend, probably on Sunday.

I will want to merge the following PRs before releasing:

• PEP 646 implementation typing#963
• add LiteralString typing#1053
• PEP 655 Add interaction with __required_keys__, __optional_keys__ and get_type_hints() typing#1057
• Add Never and assert_never typing#1060

Any feedback on these PRs would be appreciated.

I was hoping to also include assert_type, but that might end up stuck in a bikeshed for a little while.