module test {  
    namespace "xpath:inter:single";  
    prefix test ; 
   
    import test1{
       prefix test1;
    }

    import test2{
       prefix test2;
    }
 
    organization "";  
    contact "";  
       
    description   
        "Defines basic service types for L3VPN service.";  
       
    revision "2015-12-16" {  
        reference "";  
    }  

     augment /test2:cont1/test2:cont2/test1:cont2 {
       leaf a {
          type int32;
       }
     }
}