You can combine `dataclasses` with other type annotations in many different combinations to form complex data structures.

Check the in-code annotation tips above to see more specific details.

## Learn More { #learn-more }

You can also combine `dataclasses` with other Pydantic models, inherit from them, include them in your own models, etc.

                stone(philosophers-stone) -->|benötigt| harry-1
            end
        ```
        »»»


### Special blocks

There are special blocks of notes, tips and others that look like:

    «««
    /// note
    »»»

To translate it, keep the same line and add the translation after a vertical bar.

For example, if you were translating to Spanish, you would write:

* 📝 Add External Link: 10 Tips for adding SQLAlchemy to FastAPI. PR [#11036](https://github.com/tiangolo/fastapi/pull/11036) by [@Donnype](https://github.com/Donnype).
* 📝 Add External Link: Tips on migrating from Flask to FastAPI and vice-versa. PR [#11029](https://github.com/tiangolo/fastapi/pull/11029) by [@jtemporal](https://github.com/jtemporal).