Xiaomi roborock room clean (multi level map)

Hi all, i’m an openhab beginner, i recently configured my roborock.vacuum.m1s to work with openhab 3 installed on my rpi4. Now i’m trying to detect the rooms number in order to specifically clean them. Where do i have to send the get_floor_mappings command and where can i see the result? What is the right syntax?