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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 create(self, friendly_name=values.unset, log_queries=values.unset, unique_name=values.unset, callback_url=values.unset, callback_events=values.unset, style_sheet=values.unset, defaults=values.unset):
 """ Create a new AssistantInstance :param unicode friendly_name: A string to describe the new resource :param bool log_queries: Whether queries should be logged and kept after training :param unicode unique_name: An application-defined string that uniquely identifies the new resource :param unicode callback_url: Reserved :param unicode callback_events: Reserved :param dict style_sheet: A JSON string that defines the Assistant's style sheet :param dict defaults: A JSON object that defines the Assistant's default tasks for various scenarios :returns: Newly created AssistantInstance :rtype: twilio.rest.autopilot.v1.assistant.AssistantInstance """

        data = values.of({
            'FriendlyName': friendly_name,
            'LogQueries': log_queries,
            'UniqueName': unique_name,
            'CallbackUrl': callback_url,
            'CallbackEvents': callback_events,
            'StyleSheet': serialize.object(style_sheet),
            'Defaults': serialize.object(defaults),
        })

        payload = self._version.create(
            'POST',
            self._uri,
            data=data,
        )

        return AssistantInstance(self._version, payload, )