Description:
Extending models using mixin classes in Odoo 16 is a technique used to add custom fields, methods, and behavior to existing Odoo models without modifying their original code. Mixin classes in Odoo 16 are Python classes that contain reusable code that can be added to multiple models. To extend an Odoo model using a mixin class, you can create a new class that inherits from both the original model and the mixin class. The new class will have access to all the attributes and methods of both the model and the mixin.