`__class__` inside a lambda in class definition is reported as not defined

[adamsol]

Describe the bug
The code below is correct in Python (A.f() returns the class), but Pyright reports an error.

As an additional reference, there was a similar issue in Ruff: astral-sh/ruff#20562

Code or Screenshots

class A:
    f = lambda: __class__

"__class__" is not defined (reportUndefinedVariable)

VS Code extension or command-line
VS Code, same in playground