code: def create(self, **kwargs):
          '''Create a cluster of BIG-IP® devices.
  
          :param kwargs: dict -- keyword arguments for cluster manager
          '''
  
          try:
              cluster = getattr(self, "cluster", None)
          except NoClusterToManage:
              cluster = None
          if cluster is not None:
              msg = 'The ClusterManager is already managing a cluster.'
              raise AlreadyManagingCluster(msg)
  
          self._check_device_number(kwargs['devices'])
          self.trust_domain.create(
              devices=kwargs['devices'],
              partition=kwargs['device_group_partition']
          )
          self.device_group.create(**kwargs)
          self.cluster = Cluster(**kwargsf create(self, **kwargs):
          '''Create a cluster of BIG-IP® devices.
  
          :param kwargs: dict -- keyword arguments for cluster manager
          '''
  
          try:
              cluster = getattr(self, "cluster", None)
          except NoClusterToManage:
              cluster = None
          if cluster is not None:
              msg = 'The ClusterManager is already managing a cluster.'
              raise AlreadyManagingCluster(msg)
  
          self._check_device_number(kwargs['devices'])
          self.trust_domain.create(
              devices=kwargs['devices'],
              partition=kwargs['device_group_partition']
          )
          self.device_group.create(**kwargs)
          self.cluster = Cluster(**kwargs)
docs: Create a cluster of BIG-IP® devices.
  
          :param kwargs: dict -- keyword arguments for cluster manager