[Help Wanted] How can I the default size of Codec in StreamingBody

[MMitsuha]

I have a very large packet (eg. 15 mb) to receive in websocket, But I noticed that the default size of each packet is 65536, which is defined in this line, and there is no way I can modify it through StreamingBody. How can I increase the size?

PS: I use this line to establish websocket connection:

let (response, mut session, mut stream) = actix_ws::handle(&req, body)?;