input: Write a function to generate a random number between the given input numbers. The function should take two parameters, `start` and `stop`, and return a random integer between `start` and `stop` inclusive. 
  
  assert random_num(0, 10)==4
  assert random_num(5, 15)==10
  assert random_num(-5, 5)==-2
  assert random_num(100, 200)==150
  assert random_num(0, 1)==0
output: import random
  
  def random_num(start, stop):
      return random.randint(start, stop)