Bug Report
When stubgen creates stubs for a module that imports Incomplete , it then mangles / overcomplicates the import in the generated stub
edit : On Windows

To Reproduce - minimal repro

from _typeshed import Incomplete


def polar(*args, **kwargs) -> Incomplete:
    ...

running stubgen results in

from _typeshed import Incomplete as Incomplete

def polar(*args, **kwargs) -> Incomplete: ...

Environment

• Mypy version used: 1.7.0
• Mypy command-line flags: - none
• Mypy configuration options from mypy.ini (and other config files): None
• Python version used: 3.11
• OS: Windows_NT x64 10.0.26100