1 files changed, 33 insertions, 0 deletions
diff --git a/test/ext/mypy/plugin_files/mixin_three.py b/test/ext/mypy/plugin_files/mixin_three.py
new file mode 100644
index 000000000..cb8e30df8
--- /dev/null
+++ b/test/ext/mypy/plugin_files/mixin_three.py
@@ -0,0 +1,33 @@
+from typing import Callable
+
+from sqlalchemy import Column
+from sqlalchemy import Integer
+from sqlalchemy import String
+from sqlalchemy.orm import deferred
+from sqlalchemy.orm import Mapped
+from sqlalchemy.orm.decl_api import declarative_mixin
+from sqlalchemy.orm.decl_api import declared_attr
+from sqlalchemy.orm.interfaces import MapperProperty
+
+
+def some_other_decorator(fn: Callable[..., None]) -> Callable[..., None]:
+    return fn
+
+
+@declarative_mixin
+class HasAMixin:
+    x: Mapped[int] = Column(Integer)
+
+    y = Column(String)
+
+    @declared_attr
+    def data(cls) -> Column[String]:
+        return Column(String)
+
+    @declared_attr
+    def data2(cls) -> MapperProperty[str]:
+        return deferred(Column(String))
+
+    @some_other_decorator
+    def q(cls) -> None:
+        return None