command /wyczysc [<offlineplayer>]:
    permission: wyczysc.sk
    trigger:
        if arg 1 is set:
            add arg 1 to {wyczysc::*}
on join:
    loop {wyczysc::*}:
        if loop-value is arg 2:
           clear inventory of loop-value
           remove arg 2 from {wyczysc::*}