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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 coerce_quotes(quotes):
 """Coerce a quote type into an acceptable value, or raise an error."""

        orig, quotes = quotes, str(quotes) if quotes else None
        if quotes not in [None, '"', "'"]:
            raise ValueError("{!r} is not a valid quote type".format(orig))
        return quotes