@startuml
  class Firewall << (M,#FF7700) Model>> {
    active_node : ForeignKey
    administrators : ManyToManyField
    cluster : BooleanField
    cluster_data : JSONField
    description : CharField
    group : ForeignKey
    ip : CharField
    last_status_change : DateTimeField
    manufacturer : CharField
    name : CharField
    objects
    passive_node : ForeignKey
    status : CharField
  }
@enduml