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diff --git a/src/main/java/org/yaml/snakeyaml/serializer/Serializer.java b/src/main/java/org/yaml/snakeyaml/serializer/Serializer.java
index d64a56f..53bc3a1 100644
--- a/src/main/java/org/yaml/snakeyaml/serializer/Serializer.java
+++ b/src/main/java/org/yaml/snakeyaml/serializer/Serializer.java
@@ -148,6 +148,7 @@
         }
     }
 
+    //parent Node is not used but might be used in the future
     private void serializeNode(Node node, Node parent) throws IOException {
         if (node.getNodeId() == NodeId.anchor) {
             node = ((AnchorNode) node).getRealNode();