ROS 2 rclcpp + rcl - jazzy  jazzy
ROS 2 C++ Client Library with ROS Client Library
Namespace List
Here is a list of all documented namespaces with brief descriptions:
[detail level 12345]
 NrclcppVersions of rosidl_typesupport_cpp::get_message_type_support_handle that handle adapted types
 Nrosidl_typesupport_cpp
 Nstd