code: def teardown(self):
          '''Teardown the cluster of BIG-IP® devices.'''
  
          self.device_group.teardown()
          self.trust_domain.teardown()
          self.cluster = Nonf teardown(self):
          '''Teardown the cluster of BIG-IP® devices.'''
  
          self.device_group.teardown()
          self.trust_domain.teardown()
          self.cluster = None
docs: Teardown the cluster of BIG-IP® devices.