Describe the bug

Some packages can't be analyzed because currently the mypy data can't be extracted correctly. The function _get_mypy_ast() creates dictionary keys to get the data from mypy for our package, but these keys are currently not created correctly.

To Reproduce

Try to analyze the Library package. A bug will appear in the _get_api.py file for the _get_mypy_ast function.

Expected behavior

No bugs should appear and stubs should be created.

Screenshots (optional)

No response

Additional Context (optional)

No response