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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def get_headers(self):
 """Setup headers for authentication request."""


        try:
            return {
                'X-Auth-User': self.job_args['os_user'],
                'X-Auth-Key': self.job_args['os_apikey']
            }
        except KeyError as exp:
            raise exceptions.AuthenticationProblem(
                'Missing Credentials. Error: %s',
                exp
            )