ROS node, change params

Hi, im currently in the process of creating a two-wheeled-differential drive robot. Im using the Odrive 56V, and i’ve, through searching on the forum found the follow ROS node.

However it seems rather complex, or beyond me to find where i change the parameters such as poles and amount of encoder ticks. I’ve gotten the wheels working using the python terminal application.

Any help with this ROS node or a different approach would be appreciated, this robot will need to run on ROS, i don’t need anything fancier above taking movement commands.