input: Write a python function to extract a given number of random items from a list.
  assert len(extract_random_items([1, 2, 3, 4, 5], 3)) == 3
  assert len(extract_random_items([10, 20, 30, 40, 50], 2)) == 2
  assert len(extract_random_items(['a', 'b', 'c', 'd'], 1)) == 1
output: import random
  
  def extract_random_items(lst, n):
      return random.sample(lst, n)