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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 _unquote(self, value):
 """Return an unquoted version of a value"""

        if not value:
            # should only happen during parsing of lists
            raise SyntaxError
        if (value[0] == value[-1]) and (value[0] in ('"', "'")):
            value = value[1:-1]
        return value