We do not need to check typing for this project.

--- traitlets-5.15.1/pyproject.toml.orig
+++ traitlets-5.15.1/pyproject.toml
@@ -33,11 +33,6 @@
 [project.optional-dependencies]
 test = [
     "argcomplete>=3.0.3",
-    # See https://github.com/python/mypy/issues/20329 for PyPy support issue.
-    # Also, test assertions will need to be updated for 1.20+ because
-    # `reveal_type()` representations were simplified in
-    # https://github.com/python/mypy/pull/20929
-    "mypy>=1.17.0,<1.19",
     "pytest-mock",
     "pytest>=7.0,<8.2",
 ]