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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 _handle_task(self):
 """Pass request info to the async framework."""

        headers = self.request.headers

        message = None
        try:
            status_code, output = process_async_task(
                headers, self.request.body)
        except AbortAndRestart as restart:
            # Async retry status code
            status_code = 549
            message = 'Retry Async Task'
            output = str(restart)

        self.response.set_status(status_code, message)
        self.response.out.write(output)