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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 apply_deprecations(cls, path):
        "Convert any potentially deprecated paths and issue appropriate warnings"
        split = path.split('.')
        msg = 'Element {old} deprecated. Use {new} instead.'
        for old, new in cls.deprecations:
            if split[0] == old:
                parsewarning.warning(msg.format(old=old, new=new))
                return '.'.join([new] + split[1:])
        return path