input: Write a function to generate a sequence of numbers from 0 to 10, with each number multiplied by 2, and print each result.
  def generate_double_sequence():
      for i in range(11):
          print(i * 2)
  assert generate_double_sequence() is None
output: def generate_double_sequence():
      for i in range(11):
          print(i * 2)