old_contents: from django_yadt import YADTImageField
  from django_enumfield import EnumField
  
  from django.db import models
  
  from librement.utils.user_data import PerUserData
  
  from .enums import AccountEnum, CountryEnum
  
  class Profile(PerUserData('profile')):
      account_type = EnumField(AccountEnum, default=AccountEnum.INDIVIDUAL)
  
      biography = models.TextField()
      display_name = models.CharField(max_length=100)
  
      organisation = models.CharField(max_length=100, blank=True)
  
      address_1 = models.CharField(max_length=150, blank=True)
      address_2 = models.CharField(max_length=150, blank=True)
      city = models.CharField(max_length=100, blank=True)
      region = models.CharField(max_length=100, blank=True)
      zipcode = models.CharField(max_length=100, blank=True)
  
      country = EnumField(CountryEnum, default=CountryEnum.US)
  
      picture = YADTImageField(variants={
          'thumbnail': {
              'width': 150,
              'height': 150,
              'format': 'jpeg',
              'crop': True,
          },
      }, cachebust=True)
  
new_contents: from django_yadt import YADTImageField
  from django_enumfield import EnumField
  
  from django.db import models
  
  from librement.utils.user_data import PerUserData
  
  from .enums import AccountEnum, CountryEnum
  
  class Profile(PerUserData('profile')):
      account_type = EnumField(AccountEnum, default=AccountEnum.INDIVIDUAL)
  
      biography = models.TextField()
      display_name = models.CharField(max_length=100)
  
      organisation = models.CharField(max_length=100, blank=True)
  
      address_1 = models.CharField(max_length=150, blank=True)
      address_2 = models.CharField(max_length=150, blank=True)
      city = models.CharField(max_length=100, blank=True)
      region = models.CharField(max_length=100, blank=True)
      zipcode = models.CharField(max_length=100, blank=True)
  
      country = EnumField(CountryEnum, default=CountryEnum.US)
  
      picture = YADTImageField(variants={
          'thumbnail': {
              'width': 150,
              'height': 150,
              'format': 'jpeg',
              'crop': True,
          },
      }, cachebust=True)
  
      def __unicode__(self):
          return self.display_name
  
subject: Add a __unicode__