How to change timeout-limit in WebSockets?

[ghost]

I am writing a chat app.
If a client disconnects abruptly ( due to network issue ,etc) ,it should be detected immediately.
Currently disconnect is detected after around 30 seconds.How can I configure Channels so that it will be detected immediately or near-immediately?
Thank you!

[ghost]

I solved this by modifying ping_interval,ping_timeout in daphne's source code and installing modified daphne using pip install -e path/to/daphne/