Update file _3gpp-5gc-nrm-stmfunction.yang

     leaf networkInterfaceType {

      type enumeration {

        enum ALL;

        enum N2;

        enum N4;

        enum N5;

        enum NL8;

        enum NL9;

      }

      default ALL;

      description "List of network interface type to be monitored. The 

        applicable network interface type names are specified based on 

        subclause 4.2.3 of 3GPP TS 23.501 and clause 4.2.1 of 3GPP 

        TS 23.273.";

        TS 23.273.

        The value "ALL" is specified for the case if all the applicable

        interface type of the network function shall be monitored.";

      reference "Clause 4.2.3 of 3GPP TS 23.501 and clause 4.2.1 of  

        3GPP TS 23.273 for details on the allowed values.";

    }