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1   /**
2    * BSD-style license; for more info see http://pmd.sourceforge.net/license.html
3    */
4   package net.sourceforge.pmd.lang.ast;
5   
6   /**
7    * This interface can be used to tag the root node of various ASTs.
8    */
9   public interface RootNode {
10      // that's only a marker interface.
11  }