--- /dev/null
+:class:`Tags` -- Notmuch tags
+-----------------------------
+
+.. currentmodule:: notmuch
+
+.. autoclass:: Tags
+ :members:
+
+ .. method:: __len__
+
+ .. warning::
+
+ :meth:`__len__` was removed in version 0.6 as it exhausted the iterator and broke
+ list(Tags()). Use :meth:`len(list(msgs))` instead if you need to know the number of
+ tags.
+
+ .. automethod:: __str__