1 files changed, 9 insertions, 0 deletions
diff --git a/server/protocol/src/book.rs b/server/protocol/src/book.rs
index 73b14c07..7c529f22 100644
--- a/server/protocol/src/book.rs
+++ b/server/protocol/src/book.rs
@@ -70,3 +70,12 @@ pub struct DiagramEdge {
     pub dst: usize,
     pub label: Option<Message>,
 }
+
+impl NodeStyle {
+    pub fn is_procuct(&self) -> bool {
+        matches!(
+            self,
+            NodeStyle::IntermediateProduct | NodeStyle::FinalProduct
+        )
+    }
+}