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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 dynamic_template_data(self, value):
 """Data for a transactional template :param value: Data for a transactional template :type value: DynamicTemplateData, a JSON-serializeable structure """

        if not isinstance(value, DynamicTemplateData):
            value = DynamicTemplateData(value)
        try:
            personalization = self._personalizations[value.personalization]
            has_internal_personalization = True
        except IndexError:
            personalization = Personalization()
            has_internal_personalization = False
        personalization.dynamic_template_data = value.dynamic_template_data

        if not has_internal_personalization:
            self.add_personalization(
                personalization, index=value.personalization)