class Animal:
    def __init__(self, name: str):

        self.name = name
        print("Animal created")

    def speak(self) -> None:
        print("Animal speaks")

class Dog(Animal):
    ______________________________
        print("Dog created")

    def speak(self) -> None:
        print("Dog barks")

if __name__ == "__main__":
    animal: Animal = Dog("Rex", "Labrador")
    animal.speak()