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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 stacklevel():
 """Fetch current stack level."""

    pcapkit = f'{os.path.sep}pcapkit{os.path.sep}'
    tb = traceback.extract_stack()
    for index, tbitem in enumerate(tb):
        if pcapkit in tbitem[0]:
            break
    else:
        index = len(tb)
    return (index-1)