plugin XEP-0231: Bits of Binary first draft:

The current implementation only retrieve data from Bits of Binary, it's not used yet for sending.
When an XHTML-IM message is received (XEP-0071), all <img> are checked and if a cid scheme is found in src attribute the file is retrieved and the src is changed with cached file.

src/core/xmpp.py

@@ -76,6 +76,8 @@ class SatXMPPClient(wokkel_client.XMPPClient):
 
         @param type_(unicode): IQ type ('set' or 'get')
         @param timeout(None, int): timeout in seconds
+        @return((D)domish.Element: result stanza
+            errback is called if and error stanza is returned
         """
         iq_elt = xmlstream.IQ(self.xmlstream, type_)
         iq_elt.timeout = timeout