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