Pull geofence data using mavwp

I am trying to use the mavwp mavros utility command to pull geofence data from a Pixhawk. I am able to pull the waypoints just fine using “rosrun mavros mavwp pull”, but am not sure how to pull the geofence data. Could anyone advise how I could do this? I believe I have to somehow set the mission_type field of the MISSION_ITEM Mavlink message to 1, but I am not sure how. Any help would be greatly appreciated!