input: Write a python function to create an instance of the Car class and verify its attributes.
  assert isinstance(create_car_instance("Toyota", "Red", 4), Car)
  assert create_car_instance("Toyota", "Red", 4).name == "Toyota"
  assert create_car_instance("Toyota", "Red", 4).color == "Red"
  assert create_car_instance("Toyota", "Red", 4).doors == 4
output: class Car:
      def __init__(self, name, color, doors):
          self.name = name
          self.color = color
          self.doors = doors
  
  def create_car_instance(name, color, doors):
      return Car(name, color, doors)