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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 authorize(args):
 """ Authorizes Coursera's OAuth2 client for using coursera.org API servers for a specific application """

    oauth2_instance = oauth2.build_oauth2(args.app, args)
    oauth2_instance.build_authorizer()
    logging.info('Application "%s" authorized!', args.app)