input: Write a python function to create a Laptop object with brand and model attributes.
  assert isinstance(create_laptop("Dell", "XPS 15"), Laptop)
  assert create_laptop("Apple", "MacBook Pro").brand == "Apple"
  assert create_laptop("HP", "Spectre x360").model == "Spectre x360"
output: class Laptop:
      def __init__(self, brand, model):
          self.brand = brand
          self.model = model
  
  def create_laptop(brand, model):
      return Laptop(brand, model)