input: Write a python function to generate a random list of 5 unique numbers between 1 and 30.
  assert len(generate_random_list()) == 5
  assert all(1 <= num <= 30 for num in generate_random_list())
  assert len(set(generate_random_list())) == 5
output: import random
  
  def generate_random_list():
      return random.sample(range(1, 31), 5)