old_contents: from django.contrib.auth.models import User
  from django.db import models
  
  
  class TokenStorageModel(models.Model):
      id = models.ForeignKey(User, primary_key=True)
      token = models.TextField()
  
      class Meta:
          app_label = 'main'
new_contents: from django.contrib.auth.models import User
  from django.db import models
  
  
  class TokenStorageModel(models.Model):
      id = models.ForeignKey(User, primary_key=True, related_name='google_id')
      token = models.TextField()
  
      class Meta:
          app_label = 'main'
subject: add a related attribute to id