input: Write a python function to get unique strings from a list and print each unique string.
  assert get_unique_strings(['hello', 'world', 'hello', 'moon', 'sun']) == {'hello', 'world', 'moon', 'sun'}
  assert get_unique_strings(['apple', 'banana', 'apple', 'cherry', 'banana', 'date']) == {'apple', 'banana', 'cherry', 'date'}
  assert get_unique_strings(['dog', 'cat', 'dog', 'fish', 'bird']) == {'dog', 'cat', 'fish', 'bird'}
output: def get_unique_strings(strings):
      unique_strings = set(strings)
      for s in unique_strings:
          print(s)
      return unique_strings