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## Summary Previously, the ruff formatter was removing the star argument of `lambda` expressions when formatting. Given the following code snippet ```python lambda *a: () lambda **b: () ``` it would be formatted to ```python lambda: () lambda: () ``` We fix this by checking for the presence of `args`, `vararg` or `kwarg` in the `lambda` expression, before we were only checking for the presence of `args`. Fixes #5894 ## Test Plan Add new tests cases. --------- Co-authored-by: Charlie Marsh <charlie.r.marsh@gmail.com>