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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, value, synonym_of=values.unset):
 """ Create a new FieldValueInstance :param unicode language: The ISO language-country tag that identifies the language of the value :param unicode value: The Field Value data :param unicode synonym_of: The string value that indicates which word the field value is a synonym of :returns: Newly created FieldValueInstance :rtype: twilio.rest.autopilot.v1.assistant.field_type.field_value.FieldValueInstance """

        data = values.of({'Language': language, 'Value': value, 'SynonymOf': synonym_of, })

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

        return FieldValueInstance(
            self._version,
            payload,
            assistant_sid=self._solution['assistant_sid'],
            field_type_sid=self._solution['field_type_sid'],
        )