| """ | |
| Data Model Package. | |
| This package defines Pydantic models that represent the structure of data | |
| as it is stored in the database or used internally within the application's | |
| business logic. These models are distinct from API schemas and are primarily | |
| used for database interaction and internal data representation. | |
| Modules: | |
| - chat_model.py: Defines models for chat completions and messages, | |
| including fields for database storage and audit trails. | |
| """ | |