get_action_names_and_types is not implemented by the rclpy node class

[alsora]

Bug report

The get_action_names_and_types API defined here https://github.com/ros2/ros2cli/blob/rolling/ros2action/ros2action/api/__init__.py calls an homonym method on the Node rclpy class.
It looks like this function is not implemented.

This problem applies to both Galactic and Humble.

Is there a reason for that?
Which of the two libraries (ros2cli or rclpy) should be updated?

[fujitatomoya]

I may be mistaken...

ros2cli/ros2action/ros2action/api/__init__.py

Lines 60 to 61 in fc02ffe

	def get_action_names_and_types(*, node):
	return node.get_action_names_and_types()

will call either of the following?

• if ros2 daemon is NOT available. (via DirectNode)

https://github.com/ros2/rclpy/blob/6c0847a70df2a359c28ffae7e49ece2e62c1794d/rclpy/src/rclpy/node.cpp#L567-L569

• if ros2 daemon is available, request XMLRPC server. (via DaemonNode)

ros2cli/ros2cli/ros2cli/daemon/__init__.py

Line 87 in fc02ffe

bind(rclpy.action.get_action_names_and_types, node),

[alsora]

Interesting, I didn't see that cpp/python binding, however the rclpy node python class does not expose that function.
We have the similar functions for topics and services, but not the one for actions.

https://github.com/ros2/rclpy/blob/rolling/rclpy/rclpy/node.py#L1878

[fujitatomoya]

rclpy node python class does not expose that function.

(rclpy.action does) but agree, this seems to be inconsistent for me.