uhh whats a submodule i have never heard of that bro

go-xmpp/stanza/packet_enum.go

@@ -0,0 +1,31 @@
+package stanza
+
+import "strings"
+
+type StanzaType string
+
+// RFC 6120: part of A.5 Client Namespace and A.6 Server Namespace
+const (
+	IQTypeError  StanzaType = "error"
+	IQTypeGet    StanzaType = "get"
+	IQTypeResult StanzaType = "result"
+	IQTypeSet    StanzaType = "set"
+
+	MessageTypeChat      StanzaType = "chat"
+	MessageTypeError     StanzaType = "error"
+	MessageTypeGroupchat StanzaType = "groupchat"
+	MessageTypeHeadline  StanzaType = "headline"
+	MessageTypeNormal    StanzaType = "normal" // Default
+
+	PresenceTypeError        StanzaType = "error"
+	PresenceTypeProbe        StanzaType = "probe"
+	PresenceTypeSubscribe    StanzaType = "subscribe"
+	PresenceTypeSubscribed   StanzaType = "subscribed"
+	PresenceTypeUnavailable  StanzaType = "unavailable"
+	PresenceTypeUnsubscribe  StanzaType = "unsubscribe"
+	PresenceTypeUnsubscribed StanzaType = "unsubscribed"
+)
+
+func (s StanzaType) IsEmpty() bool {
+	return len(strings.TrimSpace(string(s))) == 0
+}