fix mypy errs

Author: BobTheBuidler

mypyc/test-data/run-weakref.test

@@ -14,22 +14,22 @@ class Object:
 _callback_called_cache = {"ref": False, "proxy": False}
 
 def test_weakref_ref() -> None:
-    obj = Object()
+    obj: Object | None = Object()
     r = ref(obj)
     assert r() is obj
     obj = None
     assert r() is None, r()
 
 def test_weakref_ref_with_callback() -> None:
-    obj = Object()
+    obj: Object | None = Object()
     r = ref(obj, lambda x: _callback_called_cache.__setitem__("ref", True))
     assert r() is obj
     obj = None
     assert r() is None, r()
     assert _callback_called_cache["ref"] is True
 
 def test_weakref_proxy() -> None:
-    obj = Object()
+    obj: Object | None = Object()
     p = proxy(obj)
     assert obj.some_meth() == 1
     assert p.some_meth() == 1
@@ -39,7 +39,7 @@ def test_weakref_proxy() -> None:
         p.some_meth()
 
 def test_weakref_proxy_with_callback() -> None:
-    obj = Object()
+    obj: Object | None = Object()
     p = proxy(obj, lambda x: _callback_called_cache.__setitem__("proxy", True))
     assert obj.some_meth() == 1
     assert p.some_meth() == 1