code: def convert(self, form):
          
          if not is_lazy_user(form.instance):
              raise NotLazyError('You cannot convert a non-lazy user')
  
          user = form.save()
  
          # We need to remove the LazyUser instance assocated with the
          # newly-converted user
          self.filter(user=user).delete()
          converted.send(self, user=user)
          return user
docs: Convert a lazy user to a non-lazy one. The form passed
          in is expected to be a ModelForm instance, bound to the user
          to be converted.
  
          The converted ``User`` object is returned.
  
          Raises a TypeError if the user is not lazy.