The multinode function of "pass data between devices".Note:
"The message data is stored in a cache file which will be overwritten when the next synchronisation call is made. Ensure that your scripts make use of (or copy aside) any MultiNode cache data before calling any other MultiNode API helpers that may clear the cache."

Does it mean follow example:
roler1:
    ..
   steps:
      - lava-send ipv4 ip=192
      - lava-send ipv4 ip=193
      ..
roler2:
    step2:
    - lava-wait ipv4   
    - ipdata=$(cat /tmp/lava_multi_node_cache.txt | cut -d = -f 2)
        ..
After run, is content of roler2  ipdata 193?