module ill3 {
    namespace ill3;
    prefix ill3;

    import foo { prefix foo; }

    //invalid augments (mandatory container)
    augment "/foo:root" {
        container mandatory-container-2 {
        }
    }

    augment "/foo:root/mandatory-container-2" {
        container one {
            leaf mandatory-leaf-3 {
                mandatory true;
                type empty;
            }
        }
    }
}