input: Write a function to generate a random number between two given numbers, inclusive.
  
  def random_number_generator(min, max):
      return random.randint(min, max)
  
  assert random_number_generator(2, 5) in [2, 3, 4, 5]
  assert random_number_generator(1, 3) in [1, 2, 3]
output: def random_number_generator(min, max):
      return random.randint(min, max)