input: Write a python function to select k random elements from a given list using the random.sample() method.
  assert len(random_select([1, 2, 3, 4, 5], 3)) == 3
  assert set(random_select([1, 2, 3, 4, 5], 3)).issubset(set([1, 2, 3, 4, 5]))
  assert len(random_select(['a', 'b', 'c', 'd'], 2)) == 2
output: import random
  
  def random_select(lst, k):
      return random.sample(lst, k)