Update 2 files

  import _3gpp-nr-nrm-ecmappingrule { prefix ecmap3gpp ; }

  import _3gpp-stm-nrm-stmfunction { prefix stm3gpp; }

  import _3gpp-nr-nrm-mwab { prefix mwab3gpp; }

  import _3gpp-nr-nrm-iabfunction { prefix iab3gpp; }

  organization "3GPP SA5";

  contact "https://www.3gpp.org/DynaReport/TSG-WG--S5--officials.htm?Itemid=464";

      if-feature MWABUnderManagedElement ;

    }

    uses iab3gpp:IabSubTree {      

    }

  }    

}

  import _3gpp-common-yang-types { prefix types3gpp; }

  import _3gpp-common-top { prefix top3gpp; }

  import _3gpp-5g-common-yang-types { prefix types5g3gpp; }

  import _3gpp-common-managed-element { prefix me3gpp; }

  import _3gpp-common-subnetwork { prefix subnet3gpp; }

  organization "3gpp SA5";

  contact "https://www.3gpp.org/DynaReport/TSG-WG--S5--officials.htm?Itemid=464";

      }

    }

  }

  feature IABUnderManagedElement {

    description "The IAB shall be available under ManagedElement";

  }

  augment /me3gpp:ManagedElement {

    if-feature IABUnderManagedElement;

    uses IabSubTree;

  }

  feature IABUnderSubNetwork {

    description "The IAB shall be available under SubNetwork";

  }

  augment /subnet3gpp:SubNetwork {

    if-feature IABUnderSubNetwork;

    uses IabSubTree;

  } 

}

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