• CallbackGroupType : rclcpp
• DurabilityPolicy : rclcpp
• EndpointType : rclcpp
• FutureReturnCode : rclcpp
• HistoryPolicy : rclcpp
• IntraProcessBufferType : rclcpp
• IntraProcessSetting : rclcpp
• LivelinessPolicy : rclcpp
• ParameterType : rclcpp
• QoSCompatibility : rclcpp
• ReliabilityPolicy : rclcpp
• TopicStatisticsState : rclcpp
• WaitResultKind : rclcpp