#!/usr/bin/env python
     # encoding: utf-8
     #
     # Copyright (c) 2010 Doug Hellmann.  All rights reserved.
     #
     """External tests associated with doctest_private_tests.py.
     
     >>> my_function(['A', 'B', 'C'], 2)
     ['A', 'B', 'C', 'A', 'B', 'C']
     """