input: Write a function to take two parameters and print out the larger of them.
  def printMax(parameter_1, parameter_2):
      if parameter_1 > parameter_2:
          print(parameter_1)
      else:
          print(parameter_2)
  assert printMax(7, 9)==9
  assert printMax(5, 3)==5
  assert printMax(8, 8)=='None'
output: def printMax(parameter_1, parameter_2):
      if parameter_1 > parameter_2:
          print(parameter_1)
      else:
          print(parameter_2)