input: Write a function to generate a random integer in the range [0, 10) and print it. The function should use the random module from Python's standard library.
  def generate_random_number():
      import random
      x = random.randint(0, 9)
      print(x)
  
  assert generate_random_number() is None
  assert isinstance(generate_random_number(), NoneType)
output: def generate_random_number():
      import random
      x = random.randint(0, 9)
      print(x)