Deno.serve: Is it possible to flush a streaming response?

I've been playing around with this: https://docs.deno.com/examples/http-server-streaming

I am coming from Go and I'm used to having the functionality to flush the http response to the socket. Allowing lots of control over when bytes are sent over the wire (like so: https://robpike.io/)

Is there any mechanism to prompt deno to write to the socket? Maybe another streaming response type?

Thanks!