update

Author: deependujha

tests/tests_pytorch/trainer/optimization/test_manual_optimization.py

@@ -327,6 +327,9 @@ def __copy__(self):
         new_obj = cls(self._store.copy())
         return new_obj
 
+    def copy(self):
+        return self.__copy__()
+
 
 @RunIf(min_cuda_gpus=1)
 @pytest.mark.parametrize("dicttype", [dict, CustomMapping])