Document the new attribute

discord/message.py

@@ -2120,6 +2120,10 @@ class Message(PartialMessage, Hashable):
     message_snapshots: List[:class:`MessageSnapshot`]
         The message snapshots attached to this message.
 
+        .. versionadded:: 2.5
+    soundboard_sounds: List[Union[:class:`SoundboardSound`, :class:`SoundboardDefaultSound`]]
+        The soundboard sounds mentioned in this message.
+
         .. versionadded:: 2.5
     """