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

        xmlns:m2="urn:fri:params:xml:ns:yang:imp_aug_m2">

  <namespace uri="urn:fri:params:xml:ns:yang:imp_aug_m2"/>

  <prefix value="m2"/>

  <grouping name="grp1">

    <choice name="choice1">

      <case name="case1">

        <leaf name="c1_leaf">

          <type name="uint32"/>

        </leaf>

      </case>

      <case name="case2">

        <leaf name="c2_leaf">

          <type name="string"/>

        </leaf>

      </case>

    </choice>

  </grouping>

</module>