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