How to use the beep.beep function in beep

#Get system camera in index 0
    source = ImageSource(args.camera)
    w, h = source.get_size()
    #Set document processing parameters and initialize scanner
    scanner = TestScanner(w, h, args.exams_file, show_image=True, double_check=True, debug = args.debug, poll = args.poll)

    tests = {}
    #While user does not press the q key
    while cv2.waitKey(1) & 0xFF != ord('q'):
        #Get the scan report of the source image
        report = scanner.scan(source)
        #if test recognized OK
        if report.success:
            if not report.test.id in tests:
                beep.beep()
                tests[report.test.id] = report.test
                print "Test ID:", unicode(report.test.id).encode("utf8")
                for i, q in enumerate(report.test.questions):
                    print "%d. %s"%(i+1, q)
                if len(report.test.warnings)>0:
                    print "Warnings:"
                    for w in report.test.warnings:
                        print "\t", w
            else:
                print "The test '%d' was already scanned."%report.test.id
        #if recognition went wrong print the reasons
        else:
            # show only the question detection errors and the
            # errors in the format of the qrcodes
            for e in [x for x in report.errors
                        if isinstance(x, QuestionError) or

while True:
        #While user does not press the q key if it is a camera
        if source.is_camera:
            if (cv2.waitKey(100) & 0xFF) == ord('q'):
                print('Camera finished!')
                break
        elif source.finished:
            print('Folder finished!')
            break

        #Get the scan report of the source image
        report = scanner.scan(source)
        #if test recognized OK
        if report.success:
            if not report.test.id in tests:
                beep.beep()
                tests[report.test.id] = report.test
                print "Test ID:", unicode(report.test.id).encode("utf8")
                for i, q in enumerate(report.test.questions):
                    print "%d. %s" % (i+1, q)
                if len(report.test.warnings) > 0:
                    print "Warnings:"
                    for w in report.test.warnings:
                        print "\t", w
                # on_scan(report)
                #this method appends the test results if the file exists...
                if args.autowrite:
                    scanresults.dump(tests, args.outfile, overwrite=False)
                    stats = get_stats(args.outfile)
                    stats_path = os.path.join(os.path.dirname(os.path.realpath(args.outfile)), "stats.json")
                    with open(stats_path, "wb") as stats_file:
                        json.dump(stats, stats_file, indent=4)