input: Write a python function to generate a random IP address.
  assert len(generateRandomIP().split(".")) == 4
  assert all(0 <= int(octet) <= 255 for octet in generateRandomIP().split("."))
  assert isinstance(generateRandomIP(), str)
output: import random
  
  def generateRandomIP():
      return "."join(str(random.randint(0, 255)) for _ in range(4))