input: 
  def add_positive_feedback_loop(code: str) -> str:
      """Given a Python code snippet, add a positive feedback loop where the loop 
      variable is incremented after each iteration and a message is printed when 
      the loop completes.
      
      Example:
      for i in range(10):
          print("hello")
      >>> add_positive_feedback_loop('for i in range(10):\n    print("hello")')
      for i in range(10):
          print("hello")
          i += 1
          if i == 10:
              print("You've got it!")
      """
  
output:     lines = code.split('\n')
      for i in range(len(lines)):
          if 'for ' in lines[i]:
              loop_var = lines[i].split()[1].split(' ')[0]
              lines[i] += f'\n    {loop_var} += 1'
              lines.insert(i + 1, f'    if {loop_var} == 10:\n        print("You\'ve got it!")')
              break
      return '\n'.join(lines)