Merge pull request #278 from konradhalas/bug/data-type-definition

Fix class Data(Protocol) types declaration

dacite/data.py

@@ -1,14 +1,12 @@
 try:
-    from typing import Protocol  # type: ignore
+    from typing import Protocol, Any  # type: ignore
 except ImportError:
-    from typing_extensions import Protocol  # type: ignore
+    from typing_extensions import Protocol, Any  # type: ignore
 
 
 # fmt: off
 class Data(Protocol):
-    def keys(self): ...
-
-    def __getitem__(self, item): ...
-
-    def __contains__(self, item): ...
+    def keys(self) -> Any: ...
+    def __getitem__(self, *args, **kwargs) -> Any: ...
+    def __contains__(self, *args, **kwargs) -> bool: ...
 # fmt: on