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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:
 async def crawl_raw(self, res):
 """ crawl the raw doc, and save it asynchronous. :param res: {'url','', 'name': ''} :type res: ``dict`` :return: :rtype: """

        cnt = await self.async_get(res)
        if cnt:
            loop_ = asyncio.get_event_loop()
            await loop_.run_in_executor(None, self.write_hd, res.get('name'), cnt)
            return True
        else:
            return False