Add special case for importing action feedback message #9
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This is to support getting the feedback message type used to communicate between action servers and action clients.
The feedback message type can be used to introspect action goals with tools like ros2topic.
Note that currently,
ros2 topic echo
does not work with action feedback topics. I'll have a PR to https://github.com/ros2/ros2cli shortly that makes use of the import function modified here.Maybe it makes sense to push this logic into
rosidl_parser
, but this gets the job done for now.