module foo {
    namespace foo;
    prefix foo;
    yang-version 1.1;

    container root {
   }
    container top {
        notification top-notification {
        }
    }

    list top-list {
        key key-leaf;

        leaf key-leaf {
            type string;
        }

        notification top-list-notification {
        }
    }

    grouping grp {
        notification grp-notification {
        }
    }

    augment "/root" {
        uses grp;
        notification aug-notification {
        }
    }
}