code: def auth_interactive(self, username, handler, event, submethods=''):
          
          self.transport.lock.acquire()
          try:
              self.auth_event = event
              self.auth_method = 'keyboard-interactive'
              self.username = username
              self.interactive_handler = handler
              self.submethods = submethods
              self._request_auth()
          finally:
              self.transport.lock.release()
docs: response_list = handler(title, instructions, prompt_list)