text: from django.utils.translation import ugettext_lazy as _
  
  from mayan.apps.task_manager.classes import CeleryQueue
  from mayan.apps.task_manager.workers import worker_slow
  
  queue_mailing = CeleryQueue(label=_('Mailing'), name='mailing', worker=worker_slow)
  queue_mailing.add_task_type(
      label=_('Send document'),
      dotted_path='mayan.apps.mailer.tasks.task_send_document'
  )
  