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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, language, tagged_text, source_channel=values.unset):
 """ Create a new SampleInstance :param unicode language: The ISO language-country string that specifies the language used for the new sample :param unicode tagged_text: The text example of how end users might express the task :param unicode source_channel: The communication channel from which the new sample was captured :returns: Newly created SampleInstance :rtype: twilio.rest.autopilot.v1.assistant.task.sample.SampleInstance """

        data = values.of({'Language': language, 'TaggedText': tagged_text, 'SourceChannel': source_channel, })

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

        return SampleInstance(
            self._version,
            payload,
            assistant_sid=self._solution['assistant_sid'],
            task_sid=self._solution['task_sid'],
        )