'_asyncio.Future' object has no attribute 'create_future' - python-asyncio

Question

I am working on building an asyncio.Future integration with my Tornado app so I can request a callback. Essentially, I instantiated a class within a class, this creates a future and adds a callback to the function.
However, when I call this I get a bunch of error messages:
Traceback (most recent call last):
File "/Users/robot/tornado/venv/lib/python3.8/site-packages/tornado/web.py", line 1713, in _execute
result = await result
File "pending/request_seven.py", line 31, in get
await self.scheduleFuture._future(client.fetch('https://books.toscrape.com'), self.on_response)
File "pending/request_seven.py", line 25, in _future
fut = self.create_future()
AttributeError: '_asyncio.Future' object has no attribute 'create_future'
Here is what I have tried with my script:
define('port', default = 9057, help="run port 9060", type=int)
class requestFour(tornado.web.RequestHandler):
class scheduleFuture(asyncio.SelectorEventLoop):
#staticmethod
def unwrapper(fut: asyncio.Future, function):
return function()
def _future(self, fun1 ):
fut = self.create_future()
fut.add_done_callback(func(self.unwrapper, function=fun1))
return fut
async def get(self):
client = tornado.httpclient.AsyncHTTPClient()
await self.scheduleFuture._future(client.fetch('https://books.toscrape.com'), self.on_response)
def on_response(self, response):
body = response.body
self.write(body)
self.finish()
def my_app():
app = tornado.web.Application(handlers = [(r'/', requestFour)])
http_server = tornado.httpserver.HTTPServer(app)
return http_server
async def main():
app = my_app()
app.listen(options.port)
shutdown_event = asyncio.Event()
await shutdown_event.wait()
if __name__ == '__main__':
asyncio.run(main())