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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 _validate(cls, kind):
 """Validate the kind argument."""

        if kind not in cls._valid_kinds:
            mesg = "'kind' must be one of {}, {}, {}, or {}."
            raise ValueError(mesg.format(*cls._valid_kinds))
        else:
            return kind