text: from django.db import models
  
  
  class SoftDeleteManager(models.Manager):
      def save_soft_delete(self):
          self.is_deleted = True
          self.save()
          return True
  
      def get_soft_delete(self):
          return self.filter(is_deleted=True)
  
      def get_unsoft_delete(self):
          return self.filter(is_deleted=False)
  