code: def permanently_delete(self, tickets):
          
          endpoint_kwargs = dict()
          if isinstance(tickets, collections.Iterable):
              endpoint_kwargs['destroy_ids'] = [i.id for i in tickets]
          else:
              endpoint_kwargs['id'] = tickets.id
          url = self._build_url(self.endpoint.deleted(**endpoint_kwargs))
          deleted_ticket_job_id = self._delete(url)
          self.cache.delete(tickets)
          return deleted_ticket_job_id
docs: Permanently delete ticket. `See Zendesk API docs <https://developer.zendesk.com/rest_api/docs/support/tickets#delete-ticket-permanently>`_
  
          Ticket should be softly deleted first with regular `delete` method.
  
          :param tickets: Ticket object or list of tickets objects
          :return: JobStatus object