Changelog:
============
-Fix missing type store for overloads
-Fix 'WriteToConn' object has no attribute 'flush'
-Improve TypeAlias error messages
-Support narrowing unions that include type[None]
-Support TypedDict functional syntax as class base type
-Accept multiline quoted annotations
-Allow unary + in Literal
-Substitute type variables in return type of static methods
-Consider TypeVarTuple to be invariant
-Add alias support to field() in attrs plugin
-Improve attrs hashability detection
Signed-off-by: Wang Mingyu <wangmy@fujitsu.com>
Signed-off-by: Khem Raj <raj.khem@gmail.com>
