Solution

cinema/views.py

@@ -38,10 +38,10 @@ class ActorList(
     queryset = Actor.objects.all()
     serializer_class = ActorSerializer
 
-    def get(self, request, *args, **kwargs):
+    def get(self, request, *args, **kwargs) -> Response:
         return self.list(request, *args, **kwargs)
 
-    def post(self, request, *args, **kwargs):
+    def post(self, request, *args, **kwargs) -> Response:
         return self.create(request, *args, **kwargs)
 
 
@@ -55,53 +55,53 @@ class ActorDetail(
     queryset = Actor.objects.all()
     serializer_class = ActorSerializer
 
-    def get(self, request, *args, **kwargs):
+    def get(self, request, *args, **kwargs) -> Response:
         return self.retrieve(request, *args, **kwargs)
 
     def put(self, request, *args, **kwargs):
         return self.update(request, *args, **kwargs)
 
-    def patch(self, request, *args, **kwargs):
+    def patch(self, request, *args, **kwargs) -> Response:
         actor = self.get_object()
         serializer = ActorSerializer(actor, data=request.data, partial=True)
         serializer.is_valid(raise_exception=True)
         serializer.save()
         return Response(serializer.data, status=status.HTTP_200_OK)
 
-    def delete(self, request, *args, **kwargs):
+    def delete(self, request, *args, **kwargs) -> Response:
         return self.destroy(request, *args, **kwargs)
 
 
 class GenreList(APIView):
-    def get(self, request):
+    def get(self, request) -> Response:
         genre = Genre.objects.all()
         serializer = GenreSerializer(genre, many=True)
         return Response(serializer.data, status=status.HTTP_200_OK)
 
-    def post(self, request):
+    def post(self, request) -> Response:
         serializer = GenreSerializer(data=request.data)
         serializer.is_valid(raise_exception=True)
         serializer.save()
         return Response(serializer.data, status=status.HTTP_201_CREATED)
 
 
 class GenreDetail(APIView):
-    def get_object(self, pk):
+    def get_object(self, pk) -> Genre:
         return get_object_or_404(Genre, pk=pk)
 
-    def get(self, request, pk):
+    def get(self, request, pk) -> Response:
         genre = self.get_object(pk)
         serializer = GenreSerializer(genre)
         return Response(serializer.data, status=status.HTTP_200_OK)
 
-    def put(self, request, pk):
+    def put(self, request, pk) -> Response:
         genre = self.get_object(pk)
         serializer = GenreSerializer(genre, data=request.data)
         serializer.is_valid(raise_exception=True)
         serializer.save()
         return Response(serializer.data, status=status.HTTP_200_OK)
 
-    def patch(self, request, pk):
+    def patch(self, request, pk) -> Response:
         genre = self.get_object(pk)
         serializer = GenreSerializer(
             genre,
@@ -112,7 +112,7 @@ def patch(self, request, pk):
         serializer.save()
         return Response(serializer.data, status=status.HTTP_200_OK)
 
-    def delete(self, request, pk):
+    def delete(self, request, pk) -> Response:
         genre = self.get_object(pk)
         genre.delete()
         return Response(status=status.HTTP_204_NO_CONTENT)