# Broadcast to all sockets only connected to this node.
When using the default in-memory adapter, this operator is a no-op.
# Example
```rust
# use socketioxide::{SocketIo, extract::*};
# use serde_json::Value;
async fn handler(socket: SocketRef, Data(data): Data::<Value>) {
// This message will be broadcast to all sockets in this
// namespace that are connected to this node
socket.local().emit("test", &data).await;
}
let (_, io) = SocketIo::new_svc();
io.ns("/", |s: SocketRef| s.on("test", handler));
```