input: 
  def positive_feedback_loop(iterations: int) -> None:
      """ Design a function that implements a positive feedback loop for the given python program.
      The function should print "hello" for a specified number of iterations and then print
      a positive feedback message when the loop completes.
      >>> positive_feedback_loop(10)
      hello
      hello
      hello
      hello
      hello
      hello
      hello
      hello
      hello
      hello
      You've got it!
      """
  
output:     for _ in range(iterations):
          print("hello")
      print("You've got it!")