add _3gpp-5gc-nrm-ddnmffunction.yang to align with stage 2 and openapi

module _3gpp-5gc-nrm-ddnmffunction {

  yang-version 1.1;

  namespace urn:3gpp:sa5:_3gpp-5gc-nrm-ddnmffunction;

  prefix ddnmf3gpp;

  import _3gpp-common-managed-function { prefix mf3gpp; }

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

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

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

  import _3gpp-common-top { prefix top3gpp; }

  import _3gpp-5gc-nrm-managed-nfprofile { prefix mnfp3gpp; }

  import ietf-inet-types { prefix inet; }

  organization "3gpp SA5";

  contact

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

  description "This IOC represents the 5G DDNMF function in

    5GC. For more information about the 5G DDNMF, see

    TS 23.501.

    Copyright 2026, 3GPP Organizational Partners (ARIB,

    ATIS, CCSA, ETSI, TSDSI, TTA, TTC).

    All rights reserved.";

  reference "3GPP TS 28.541";

  revision 2025-04-25 { reference "CR-"; }

  grouping DDNMFFunctionGrp {

    description "Represents the DDNMFFunction IOC.";

    uses mf3gpp:ManagedFunctionGrp;

    list pLMNId {

      description "The PLMN identifier.";

      key "mcc mnc";

      min-elements 1;

      max-elements 1;

      uses types3gpp:PLMNId;

    }

    leaf sBIFQDN {

      description "The FQDN of the registered NF instance

        in the service-based interface.";

      type inet:domain-name;

    }

    list managedNFProfile {

      key idx;

      leaf idx { type uint32; }

      min-elements 1;

      max-elements 1;

      description "Profile definition of a Managed NF

        (See TS 23.501).";

      uses mnfp3gpp:ManagedNFProfileGrp;

    }

    list commModelList {

      min-elements 1;

      key "groupId";

      description "Specifies a list of commModel. It can

        be used by NF and NF services to interact with

        each other in 5G Core network.";

      reference "3GPP TS 23.501";

      uses types5g3gpp:CommModel;

    }

  }

  augment "/me3gpp:ManagedElement" {

    list DDNMFFunction {

      description "5G Core DDNMF Function";

      reference "3GPP TS 28.541";

      key id;

      uses top3gpp:Top_Grp;

      container attributes {

        uses DDNMFFunctionGrp;

      }

      uses mf3gpp:ManagedFunctionContainedClasses;

    }

  }

}