xmlns="urn:ietf:params:xml:ns:yang:yin:1">

    <namespace uri="urn:c2"/>

    <prefix value="c2_mod"/>

    <import module="c1">

        <prefix value="c1_mod"/>

    </import>

    <augment target-node="/c1_mod:top">

        <leaf name="leaf2">

            <type name="empty"/>

        </leaf>

        <container name="cont"/>

    </augment>

</module>