## Summary - Do not treat empty tuples as singletons after discussion [1] - Improve comment regarding intersection types - Resolve unnecessary TODO in Markdown test [1] https://discuss.python.org/t/should-we-specify-in-the-language-reference-that-the-empty-tuple-is-a-singleton/67957 ## Test Plan —
Markdown files within the mdtest/ subdirectory are tests of type inference and type checking;
executed by the tests/mdtest.rs integration test.
See crates/red_knot_test/README.md for documentation of this test format.