How to add type annotations to SQLAlchemy models

1. 1Import the necessary libraries, including SQLAlchemy and typing
2. 2Define a SQLAlchemy model with type annotations for each column
3. 3Use the typing module to specify the data type of each column
4. 4Apply type annotations to relationships between models
5. 5Test the models to ensure the type annotations are correct

Backend developers and data engineers can benefit from this technique to make their SQLAlchemy models more robust and self-documenting

💡 Type annotations can significantly enhance the readability and maintainability of SQLAlchemy models

🚀 Improve your SQLAlchemy models with type annotations! 💻