input: Write a function to generate a set of unique random numbers in the range 0-10.
  assert generate_random_set()=={0, 1, 2, 3, 4, 5, 6, 7, 8, 9}
  assert generate_random_set()=={0, 1, 2, 3, 4, 5, 6, 7, 8, 10}
  assert generate_random_set()=={0, 1, 2, 3, 4, 5, 6, 7, 9, 10}
  assert generate_random_set()=={0, 1, 2, 4, 5, 6, 7, 8, 9, 10}
  assert generate_random_set()=={1, 2, 3, 4, 5, 6, 7, 8, 9, 10}
output: import random
  
  def generate_random_set():
      return set(random.sample(range(11), 10))