old_contents: from django.db import models
  
  # Create your models here.
  
new_contents: from django.core.validators import MaxValueValidator, MinValueValidator
  from django.db import models
  
  
  class Token(models.Model):
      public_name = models.CharField(max_length=200)
      symbol = models.CharField(max_length=4)
      decimals = models.IntergerField(
          default=18,
          validators=[MaxValueValidator(20), MinValueValidator(0)]
      )
  
subject: Create a dead simple Django model for storing token information