<SYSTEM_TASK:>
Solve the following problem using Python, implementing the functions described below, one line at a time
<END_TASK>
<USER_TASK:>
Description:
 def challenge(self):
 """ Override challenge to raise an exception that will trigger regular error handling. """

        response = super(ConfigBasicAuth, self).challenge()
        raise with_headers(Unauthorized(), response.headers)