module test {  
    namespace "test:test";  
    prefix test;
    typedef type1 {
        type string;
    }
    list list1 {
       key "name sur-name";
       leaf name {
          type string;
       }
       leaf sur-name {
           type type1;
       }
       choice c1 {
          case ca1 {
             leaf a {
                type int32;
             }
          }
       }
    }
    list list2 {
           key "name sur-name";
           leaf name {
              type string;
           }
           leaf sur-name {
               type type1;
           }
        }
}