async def _subscribe_to_streams(self, ws: ClientWebSocketResponse):
coros = (ws.send_json(key) for key in self._subscription_keys())
await asyncio.gather(*coros)
async def _subscribe_to_streams(self, ws: ClientWebSocketResponse):
coros = (ws.send_json(key) for key in self._subscription_keys())
await asyncio.gather(*coros)
