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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 busy_display():
 """Display animation to show activity."""

    sys.stdout.write("\033[?25l")  # cursor off
    sys.stdout.flush()
    for x in range(1800):
        symb = ['\\', '|', '/', '-']
        sys.stdout.write("\033[D{}".format(symb[x % 4]))
        sys.stdout.flush()
        gevent.sleep(0.1)