submodule test1 {  

    belongs-to test {
         prefix test;
    }           

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

    container cont1 {
          leaf leaf1 {
             type int32;
         }
         container cont2 {
            leaf leaf2 {
               type int32;
            }
         }
     }
    
    augment /cont1/cont2 {
        container cont4 {
          leaf leaf1 {
             type int32;
          }
       }
    }

}