XEP-0199 got dropped during a cut/paste for 203 and 204.
@@ -59,6 +59,7 @@ packages = [ 'sleekxmpp',
'sleekxmpp/plugins/xep_0086',
'sleekxmpp/plugins/xep_0092',
'sleekxmpp/plugins/xep_0128',
'sleekxmpp/plugins/xep_0199',
'sleekxmpp/plugins/xep_0202',
'sleekxmpp/plugins/xep_0203',
'sleekxmpp/plugins/xep_0224',
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