      AbstractBaseUser, AbstractUser, BaseUserManager, Group, Permission,
      PermissionsMixin, UserManager,
  )
  from django.db import models
  from django.utils.encoding import python_2_unicode_compatible
  
  
  # The custom user uses email as the unique identifier, and requires
  # that every user provide a date of birth. This lets us test
  # changes in username datatype, and non-text required fields.
 
</s> remove from django.utils.encoding import python_2_unicode_compatible
 </s> add  </s> remove @python_2_unicode_compatible
 </s> add  </s> remove from django.utils.encoding import python_2_unicode_compatible
 </s> add  </s> remove @python_2_unicode_compatible
 </s> add  </s> remove @python_2_unicode_compatible
 </s> add 
      AbstractBaseUser, AbstractUser, BaseUserManager, Group, Permission,
      PermissionsMixin, UserManager,
  )
  from django.db import models

  
  
  # The custom user uses email as the unique identifier, and requires
  # that every user provide a date of birth. This lets us test
  # changes in username datatype, and non-text required fields.
keep keep keep keep replace keep keep keep keep keep
 Refs #23919 -- Removed python_2_unicode_compatible decorator usage 
tests/auth_tests/models/custom_user.py