o.datatype = "uinteger"
o.optional = true
+OptionalFlag(s, "allow_anonymous", _("Allow anonymous connections"), _("Allow to connect without providing a username and password"))
o = s:option(Value, "max_inflight_messages", _("Max Inflight Messages"), _("Limit for message allowed inflight"))
o.datatype = "uinteger"
o.optional = true