input: 
  import random
  
  def generate_random_number():
      """ Generate a random number between 0 and 9.
      >>> generate_random_number()
      # The output will be a random number between 0 and 9
      """
      random_num = random.randint(0, 9)
      return random_num
  
output:     random_num = random.randint(0, 9)
      return random_num