content: from django.db.models.signals import post_delete, post_save
  from django.dispatch import receiver
  
  from dcim.signals import rebuild_paths
  from .models import CircuitTermination
  
  
  @receiver(post_save, sender=CircuitTermination)
  def update_circuit(instance, **kwargs):
      """
      When a CircuitTermination has been modified, update its parent Circuit.
      """
      termination_name = f'termination_{instance.term_side.lower()}'
      instance.circuit.refresh_from_db()
      setattr(instance.circuit, termination_name, instance)
      instance.circuit.save()
  
  
  @receiver((post_save, post_delete), sender=CircuitTermination)
  def rebuild_cablepaths(instance, raw=False, **kwargs):
      """
      Rebuild any CablePaths which traverse the peer CircuitTermination.
      """
      if not raw:
          peer_termination = instance.get_peer_termination()
          if peer_termination:
              rebuild_paths([peer_termination])
  