#[filter]Expand description
Generate a Retina program without a specification file. This expects a #[filter(“…”)] macro followed by the expected callback. It must be used with #[retina_main(X)], where X = number of subscriptions.
#[filter]Generate a Retina program without a specification file. This expects a #[filter(“…”)] macro followed by the expected callback. It must be used with #[retina_main(X)], where X = number of subscriptions.