> For the complete documentation index, see [llms.txt](https://www.learnros2.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://www.learnros2.com/ros/ros2-building-blocks/built-in-types.md).

# Built-in Types

- [Built-in Message Type](https://www.learnros2.com/ros/ros2-building-blocks/built-in-types/built-in-message-type.md)