old_contents: """
  A management command which deletes invalid tickets from the
  database. A ticket is invalidated either when it expires a
  configurable number of minutes after creation or by being
  consumed. Either situation means the ticket is no longer
  valid for future authentication attempts and can be safely
  deleted.
  
  These tickets are not removed at the moment of invalidation so
  as to provide a historical record in the database of validation
  successes and failures. However, this command should be run on
  a regular basis to prevent invalid tickets from creating
  storage or performance problems.
  
  This command calls ``delete_invalid_tickets()`` for each applicable
  model, which determines the tickets that have been invalidated and
  deletes them.
  """
  
  from django.core.management.base import NoArgsCommand
  
  from mama_cas.models import ServiceTicket
  
  
  class Command(NoArgsCommand):
      help = "Delete expired or consumed CAS tickets from the database"
  
      def handle_noargs(self, **options):
          ServiceTicket.objects.delete_invalid_tickets()
  
new_contents: """
  A management command which deletes invalid tickets from the
  database. A ticket is invalidated either when it expires a
  configurable number of minutes after creation or by being
  consumed. Either situation means the ticket is no longer
  valid for future authentication attempts and can be safely
  deleted.
  
  These tickets are not removed at the moment of invalidation so
  as to provide a historical record in the database of validation
  successes and failures. However, this command should be run on
  a regular basis to prevent invalid tickets from creating
  storage or performance problems.
  
  This command calls ``delete_invalid_tickets()`` for each applicable
  model, which determines the tickets that have been invalidated and
  deletes them.
  """
  
  from django.core.management.base import NoArgsCommand
  
  from mama_cas.models import ServiceTicket
  from mama_cas.models import ProxyTicket
  from mama_cas.models import ProxyGrantingTicket
  
  
  class Command(NoArgsCommand):
      help = "Delete expired or consumed CAS tickets from the database"
  
      def handle_noargs(self, **options):
          ServiceTicket.objects.delete_invalid_tickets()
          ProxyTicket.objects.delete_invalid_tickets()
          ProxyGrantingTicket.objects.delete_invalid_tickets()
  
subject: Add new models to cleanupcas management command