package com.puppycrawl.tools.checkstyle.grammar.antlr4;
   
   import java.util.Iterator;
   import java.util.function.Function;
   
   public class InputAntlr4AstRegressionTrickyYield<T1> {
       public Iterator<T1> yield() {
           return yield(Function.identity());
       }
  
      private static <T, T1> Iterator<T1> yield(Function<T,T> identity) {
          return null;
      }
  }