text: from functools import wraps
  
  from django.core.exceptions import ObjectDoesNotExist, ImproperlyConfigured  # NOQA
  from django.db.models.query import Q, QuerySet, Prefetch  # NOQA
  from django.db.models.expressions import ExpressionNode, F, Value, Func, Case, When  # NOQA
  from django.db.models.manager import Manager  # NOQA
  from django.db.models.base import Model  # NOQA
  from django.db.models.aggregates import *  # NOQA
  from django.db.models.fields import *  # NOQA
  from django.db.models.fields.subclassing import SubfieldBase        # NOQA
  from django.db.models.fields.files import FileField, ImageField  # NOQA
  from django.db.models.fields.related import (  # NOQA
      ForeignKey, ForeignObject, OneToOneField, ManyToManyField,
      ManyToOneRel, ManyToManyRel, OneToOneRel)
  from django.db.models.fields.proxy import OrderWrt  # NOQA
  from django.db.models.deletion import (  # NOQA
      CASCADE, PROTECT, SET, SET_NULL, SET_DEFAULT, DO_NOTHING, ProtectedError)
  from django.db.models.lookups import Lookup, Transform  # NOQA
  from django.db.models import signals  # NOQA
  
  
  def permalink(func):
      """
      Decorator that calls urlresolvers.reverse() to return a URL using
      parameters returned by the decorated function "func".
  
      "func" should be a function that returns a tuple in one of the
      following formats:
          (viewname, viewargs)
          (viewname, viewargs, viewkwargs)
      """
      from django.core.urlresolvers import reverse
  
      @wraps(func)
      def inner(*args, **kwargs):
          bits = func(*args, **kwargs)
          return reverse(bits[0], None, *bits[1:3])
      return inner
  