Python Programming - Polymorphism - Discussion

class Vehicle:
    def start(self):
        return "Generic vehicle starting"

class Car(Vehicle):
    def start(self):
        return "Car starting"

class Bike(Vehicle):
    def start(self):
        return "Bike starting"

def drive(vehicle):
    return vehicle.start()

car = Car()
bike = Bike()

print(drive(car))
print(drive(bike))