wantResponse

@get:JvmName(name = "getWantResponse")
@set:JvmName(name = "setWantResponse")
var wantResponse: Boolean
Not normally used, but for testing a sender can request that recipient
responds in kind (i.e. if it received a position, it should unicast back it's position).
Note: that if you set this on a broadcast you will receive many replies.

bool want_response = 3;