code: def enable(self, enable_password):
          
          if self.device.prompt[-1] == '#':
              self.log("Device is already in privileged mode")
              return
  
          events = [self.password_re, self.device.prompt_re, pexpect.TIMEOUT, pexpect.EOF]
          transitions = [
              (self.password_re, [0], 1, partial(a_send_password, enable_password), 10),
              (self.password_re, [1], -1, ConnectionAuthenticationError("Incorrect enable password",
                                                                        self.device.hostname), 0),
              (self.device.prompt_re, [0, 1, 2, 3], -1, a_expected_prompt, 0),
              (pexpect.TIMEOUT, [0, 1, 2], -1, ConnectionAuthenticationError("Unable to get privileged mode",
                                                                             self.device.hostname), 0),
              (pexpect.EOF, [0, 1, 2], -1, ConnectionError("Device disconnected"), 0)
          ]
          self.device.ctrl.send_command(self.enable_cmd)
          fsm = FSM("IOS-ENABLE", self.device, events, transitions, timeout=10, max_transitions=5)
          fsm.run()
          if self.device.prompt[-1] != '#':
              raise ConnectionAuthenticationError("Privileged mode not set", self.device.hostname)
docs: Change to the privilege mode.