input: Write a python function to create an instance of the Car class and test its getter and setter methods.
  assert test_car().get_brand() == "Toyota"
  assert test_car().get_horsepower() == 150
  assert test_car().get_color() == "Red"
output: def test_car():
      class Car:
          def __init__(self, brand, horsepower, color):
              self._brand = brand
              self._horsepower = horsepower
              self._color = color
  
          def get_brand(self):
              return self._brand
  
          def set_brand(self, brand):
              self._brand = brand
  
          def get_horsepower(self):
              return self._horsepower
  
          def set_horsepower(self, horsepower):
              self._horsepower = horsepower
  
          def get_color(self):
              return self._color
  
          def set_color(self, color):
              self._color = color
  
      car = Car("Toyota", 150, "Red")
      return car