Want to add a life time limit for stream proxy_pass session with stream-lua-nginx-module.

im making a reverce proxy with OpenResty,
wrote stream directive as below,
and then, i want to add a life time limit for each session like 1 hour max, 1min max ...
ChatGPT said to me 'ngx.exit() shutdown the sockets of proxy_pass' but it seemes it doesn't.
Any advice is appreciated.
thank you.
Best regard. yasoo7964

stream {
error_log /usr/local/openresty/nginx/logs/stream_error.log notice;
server {
listen 5432;
preread_by_lua_block {

                    local function ontimeout()
                            if premature then
                                    return
                            end
                            ngx.log(ngx.NOTICE, "Stream session timed out. Force close..")
                            ngx.exit(ngx.ERROR)
                    end

                    local ok, err = ngx.timer.at(60, ontimeout)
                    if not ok then
                            ngx.log(ngx.NOTICE, "Failed to create timer for a stream session. ", err)
                    else
                            ngx.log(ngx.NOTICE, "Start r-proxying a stream session.")
                    end
            }
            proxy_pass 192.168.62.222:5432;
    }

}

Start with the provided stream configuration, especially preread_by_lua_block, ngx.timer.at, ngx.exit, and proxy_pass, and reproduce the reported behavior. Read the stream-lua-nginx-module guidance for session lifecycle and timers; the work is complete when a documented, reliable approach enforces the requested maximum session duration and closes the proxied session.