Python SDK examples websocket async_http bug

[jacobtang]

Here is an issue: I tested the Python SDK demo, and it seems to limit the duration to about 300 seconds, which causes the service connection to disconnect.
the information from the returned results：
{
"type": "Metadata",
"transaction_key": "deprecated",
"request_id": "d8dabda8-c738-4db2-b3b7-3acf04c16e9a",
"sha256": "af3f9131cb4d8eb49f6f84beecf741a8a0e0e96bd4d3239cc48064244c54403d",
"created": "2025-01-01T13:16:23.337Z",
"duration": 309.14395,
"channels": 1,
"models": [
"1dbdfb4d-85b2-4659-9831-16b3c76229aa"
],
"model_info": {
"1dbdfb4d-85b2-4659-9831-16b3c76229aa": {
"name": "2-general-nova",
"version": "2024-01-11.36317",
"arch": "nova-2"
}
}
}

Could not open socket: