feat: tokio stream

__concurrent/async_study/examples/tokio_stream.rs

@@ -0,0 +1,10 @@
+use tokio_stream::{self as stream, StreamExt};
+
+#[tokio::main]
+async fn main() {
+    let mut stream = stream::iter(vec![0, 1, 2]);
+
+    while let Some(value) = stream.next().await {
+        println!("Got {}", value);
+    }
+}