declare function listenSignalNotifyOnce(filterFn: (event: SignalInfoContract) => boolean, fn: (event: SignalInfoContract) => void): () => void;
Subscribes to filtered signal info events with one-time execution. Listens for events matching the filter predicate, then executes callback once and automatically unsubscribes.
| Parameter | Description |
|---|---|
filterFn |
Predicate to filter which events trigger the callback |
fn |
Callback function to handle the filtered event (called only once) |