feat(api): declare typed WebSocket operations

crates/api-macros/tests/ui/duplicate_websocket_route.rs

@@ -0,0 +1,21 @@
+use api_macros::api;
+
+pub struct Frame;
+pub struct Response;
+
+#[api]
+pub trait DuplicateTransportRouteApi {
+    #[get("/widgets/{widget_id}/events")]
+    async fn events(&self, #[path] widget_id: u64) -> Response;
+
+    #[websocket(
+        "/widgets/{widget_id}/events",
+        method = GET,
+        client_to_server = Frame,
+        server_to_client = Frame,
+        path_parameters = [widget_id: u64]
+    )]
+    type WidgetEvents;
+}
+
+fn main() {}