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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 incremental(self, start_time, **kwargs):
 """ Retrieve bulk data from the chat incremental API. :param fields: list of fields to retrieve. `Chat API Docs <https://developer.zendesk.com/rest_api/docs/chat/incremental_export#usage-notes-resource-expansion>`__. :param start_time: The time of the oldest object you are interested in. """

        return self._query_zendesk(self.endpoint.incremental, self.object_type, start_time=start_time, **kwargs)