Как заполнить поля юзера данными из Facebook при аутентификации через python-social-auth

class User(AbstractUser):
    """Custom User model."""
 
    username = None
    email = models.EmailField(blank=False, unique=True, verbose_name=_("Email"))
    facebook_link = models.URLField(blank=True, verbose_name=_("Facebook profile link"))
    contacts = models.CharField(blank=True, max_length=250, verbose_name=_("Contacts"))
    hometown = models.CharField(blank=True, max_length=250, verbose_name=_("Hometown"))
    start_coordinates = models.CharField(blank=True, max_length=100, verbose_name=_("Start coordinates"))
    avatar = ProcessedImageField(
        upload_to="avatar/",
        format="JPEG",
        options={"quality": 80},
        default="avatar/default_avatar.jpg",
        verbose_name=_("Image"),
    )
 
 
    USERNAME_FIELD = "email"
    REQUIRED_FIELDS = []
 
def __str__(self):
    """Model representation."""
    return self.email
 
def get_absolute_url(self):
    """Get url to User's model instance."""
    return reverse_lazy("public-profile", kwargs={"user_id": self.pk})
 
def get_full_name(self):
    """Concatenate fist and last names."""
    full_name = " ".join([self.first_name, self.last_name])
    return full_name.strip()
 
get_full_name.short_description = _("Full name")
 
class Meta:
    verbose_name = _("User")
    verbose_name_plural = _("Users")
 
class UserManager(BaseUserManager):
    """
    Custom user model manager where email is the unique identifiers
    for authentication instead of usernames.
    """
 
    def create_user(self, email, password=None, **extra_fields):
        """Create and save a User with the given email and password."""
        if not email:
            raise ValueError(_("Email required"))
        email = self.normalize_email(email)
        user = self.model(email=email, **extra_fields)
        user.set_password(password)
        user.save()
        return user
 
    def create_superuser(self, email, password, **extra_fields):
        """Create and save a SuperUser with the given email and password."""
        extra_fields.setdefault("is_staff", True)
        extra_fields.setdefault("is_superuser", True)
        extra_fields.setdefault("is_active", True)
        if extra_fields.get("is_staff") is not True:
            raise ValueError(_("Superuser must have is_staff=True."))
        if extra_fields.get("is_superuser") is not True:
            raise ValueError(_("Superuser must have is_superuser=True."))
        return self.create_user(email, password, **extra_fields)

AUTHENTICATION_BACKENDS = (
    'social_core.backends.github.GithubOAuth2',
    'social_core.backends.google.GoogleOAuth2',
    'social_core.backends.facebook.FacebookOAuth2',
    'django.contrib.auth.backends.ModelBackend',
)
 
SOCIAL_AUTH_USER_MODEL = 'accounts.User'
SOCIAL_AUTH_USERNAME_IS_FULL_EMAIL = True
SOCIAL_AUTH_LOGIN_REDIRECT_URL = 'home'
SOCIAL_AUTH_LOGIN_URL = 'login'
 
SOCIAL_AUTH_FACEBOOK_SCOPE = ['email', 'user_link', 'user_hometown']
SOCIAL_AUTH_FACEBOOK_PROFILE_EXTRA_PARAMS = {
    'fields': 'id, name, email, picture.type(large), link, hometown'
}
SOCIAL_AUTH_FACEBOOK_EXTRA_DATA = [
    ('name', 'name'),
    ('email', 'email'),
    ('picture', 'avatar'),
    ('link', 'facebook_link'),
    ('hometown', 'hometown'),
]