document __bytes__ special method (closes #13259)
diff --git a/Doc/reference/datamodel.rst b/Doc/reference/datamodel.rst
index 129f987..d01b1f2 100644
--- a/Doc/reference/datamodel.rst
+++ b/Doc/reference/datamodel.rst
@@ -1157,6 +1157,14 @@
.. XXX what about subclasses of string?
+.. method:: object.__bytes__(self)
+
+ .. index:: builtin: bytes
+
+ Called by :func:`bytes` to compute a byte-string representation of an
+ object. This should return a ``bytes`` object.
+
+
.. method:: object.__format__(self, format_spec)
.. index::