fixed

app/main.py

@@ -16,17 +16,17 @@ def feed(self) -> int:
             print(f"Eating {self.appetite} food points...")
             self.is_hungry = False
             return self.appetite
-        else:
-            return 0
+
+        return 0
 
 
 class Cat(Animal):
     def __init__(self, name: str, is_hungry: bool = True) -> None:
         super().__init__(name, appetite=3, is_hungry=is_hungry)
 
-    @staticmethod
-    def catch_mouse() -> None:
+    def catch_mouse(self) -> None:
         print("The hunt began!")
+        self.is_hungry = False
 
 
 class Dog(Animal):
@@ -39,8 +39,4 @@ def bring_slippers() -> None:
 
 
 def feed_animals(animals: list) -> int:
-    total_food = 0
-    for animal in animals:
-        if animal.is_hungry:
-            total_food += animal.feed()
-    return total_food
+    return sum([animal.feed() for animal in animals])