new_contents: # Generated by Django 3.1.12 on 2021-08-02 11:40
  
  from django.db import migrations, models
  
  
  class Migration(migrations.Migration):
  
      dependencies = [
          ('fcm_django', '0005_auto_20170808_1145'),
      ]
  
      operations = [
          migrations.AlterField(
              model_name='fcmdevice',
              name='device_id',
              field=models.CharField(blank=True, db_index=True, help_text='Unique device identifier', max_length=4096, null=True, verbose_name='Device ID'),
          ),
      ]
  
subject: Add migration for field length