module module2 {
    yang-version 1;

    namespace "http://example.com/module2";
    prefix "module2";

    import module1 { prefix "module1"; }

    description "Module 2";

    revision "2016-03-09" {
        description "Initial version.";
    }

    augment "module1:top" {
        when "module1:top = 'extended'";
        description "text";
        status deprecated;
        reference "ref";
        leaf extended-leaf {
            when "module1:top = 'extended'";
            description "text";
            status deprecated;
            reference "ref";
            type string;
        }
    }
}