Issue #10225: Fixed the simple mistakes in doctests.
diff --git a/Doc/library/operator.rst b/Doc/library/operator.rst
index 3c36f2b..1dc0e14 100644
--- a/Doc/library/operator.rst
+++ b/Doc/library/operator.rst
@@ -9,7 +9,7 @@
 .. testsetup::
 
    import operator
-   from operator import itemgetter
+   from operator import itemgetter, iadd
 
 
 The :mod:`operator` module exports a set of functions implemented in C