  import pytz
  from django.core.exceptions import ValidationError as DjangoValidationError
  from django.http import QueryDict
  from django.test import TestCase, override_settings
  from django.utils.timezone import activate, deactivate, override, utc
  
  import rest_framework
  from rest_framework import exceptions, serializers
  from rest_framework.fields import (
      BuiltinSignatureError, DjangoImageField, is_simple_callable
 
</s> remove from django.utils.timezone import utc
 </s> add  </s> remove from django.utils.timezone import utc
 </s> add  </s> remove from datetime import date, datetime, timedelta
 </s> add from datetime import date, datetime, timedelta, timezone
from django.utils.timezone import activate, deactivate, override
  import pytz
  from django.core.exceptions import ValidationError as DjangoValidationError
  from django.http import QueryDict
  from django.test import TestCase, override_settings
from django.utils.timezone import activate, deactivate, override
  
  import rest_framework
  from rest_framework import exceptions, serializers
  from rest_framework.fields import (
      BuiltinSignatureError, DjangoImageField, is_simple_callable
keep keep keep keep replace keep keep keep keep keep
 Confirmed support for Django 4.1. (#8498) 
tests/test_fields.py