old_contents: from django.db import models
  from django.conf import settings
  
  
  class Account(models.Model):
      user = models.ForeignKey(
          settings.AUTH_USER_MODEL,
      )
      fullName = models.CharField(max_length=150)
      status = models.CharField(max_length=20)
  
      # Automatic timestamps
      created = models.DateTimeField(auto_now_add=True)
      updated = models.DateTimeField(auto_now=True)
  
      def __str__(self):
          return self.fullName
  
new_contents: from django.db import models
  from django.conf import settings
  
  from core.models import TimeStampedModel
  
  
  class Account(TimeStampedModel):
      user = models.ForeignKey(
          settings.AUTH_USER_MODEL,
      )
      fullName = models.CharField(max_length=150)
      status = models.CharField(max_length=20)
  
      def __str__(self):
          return self.fullName
  
subject: Change to TimeStampedModel