XEP-0153: API changes

docs/api/plugins/xep_0153.rst

@@ -9,6 +9,42 @@ XEP-0153: vCard-Based Avatars
     :exclude-members: session_bind, plugin_init, plugin_end
 
 
+Internal API methods
+--------------------
+
+The internal API is used here to maintain an in-memory JID→avatar hash
+cache.
+
+.. glossary::
+
+    set_hash
+        - **jid**: :class:`~.JID` of whom to retrieve the last activity
+        - **node**: unused
+        - **ifrom**: unused
+        - **args**: ``str``, avatar hash
+
+        Set the avatar hash for a JID.
+
+    reset_hash
+        - **jid**: :class:`~.JID` of whom to retrieve the last activity
+        - **node**: unused
+        - **ifrom**: :class:`~.JID` of the entity requesting the reset.
+        - **args**: unused
+        - **returns**
+          information.
+
+        Reset the avatar hash for a JID. This downloads the vcard and computes
+        the hash.
+
+    get_hash
+        - **jid**: :class:`~.JID` of whom to retrieve the last activity
+        - **node**: unused
+        - **ifrom**: unused
+        - **args**: unused
+        - **returns**: ``Optional[str]``, the avatar hash
+
+        Get the avatar hash for a JID.
+
 Stanza elements
 ---------------