module mod4 {

    prefix abc;

    namespace "urn:cesnet:mod4";

    container ccc {

        choice ch1 {

            case ca {

                status deprecated;

                when "/top = 'admin'";

                reference "test reference";

                description "test description";

                when "/top = 'admin'"; // duplicated

            }

            reference "test reference";

        }

        description "test description 2";

    }

    leaf top {

        type string;

        default "admin";

    }

}