cat.swift

class Cat : Animal, Eye{
    var isIdle: Bool? = true
    func run() {
        print("Cat is running now")
    }
    
    func stop() {
        print("Cat has stopped now")
    }
    
    func closeEyesAndSleep() {
        print("Cat is sleeping now")
    }
    
    func openEyesAndLookAround() {
        print("Cat is looking around")
    }
}