+import com.google.common.base.Optional;
+import com.google.common.collect.FluentIterable;
+import com.google.common.collect.ImmutableMap;
+import com.google.common.collect.ImmutableSet;
+
+/**
+ * @deprecated This class provides compatibility between {@link CompositeNode} and {@link NormalizedNode}.
+ * Users of this class should use {@link NormalizedNode}s directly.
+ */
+@Deprecated