A set of helpful applications to use within your Django projects is included in the official distribution. This module is called what?

What does the Django command `manage.py shell` do?

How can you define additional behavior and characteristics of a Django class?

Where is pre_save signal in Django

What is Dijit?

What does the Django command `manage.py validate` do?

Which class allows you to automatically create a Serializer class with fields and validators that correspond to your model's fields?

Which type of class allows QuerySets and model instances to be converted to native Python data types for use in APIs?

Which command would you use to apply a migration?

To secure an API endpoint, making it accessible to registered users only, you can replace the rest_framework.permissions.allowAny value in the default_permissions section of your settings.py to

What is a callable that takes a value and raises an error if the value fails?