How to enable MLAG traceoptions

admin@Xorplus# set protocols mlag traceoptions 
Possible completions:
  <[Enter]>                       Execute this command
  all                             Configure MLAG all events and packets tracing
  configuration                   Configure MLAG configuration tracing
  event                           Configure MLAG event tracing
  packet                          Configure MLAG send/receive packets tracing
  raw-packet                      Configure MLAG raw packet tracing
  state-change                    Configure MLAG state change tracing
  timer                           Configure MLAG timer tracing