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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 transformFromNative(cls, obj):
 """ Convert the list of tuples in obj.value to strings. """

        if obj.isNative:
            obj.isNative = False
            transformed = []
            for tup in obj.value:
                transformed.append(periodToString(tup, cls.forceUTC))
            if len(transformed) > 0:
                tzid = TimezoneComponent.registerTzinfo(tup[0].tzinfo)
                if not cls.forceUTC and tzid is not None:
                    obj.tzid_param = tzid

            obj.value = ','.join(transformed)

        return obj