module cisco-xe-ietf-yang-push-ext {

    yang-version 1;

    namespace
      "urn:cisco:params:xml:ns:yang:cisco-xe-ietf-yang-push-ext";

    prefix cyp;

    import ietf-event-notifications {
      prefix sn;
    }
    import ietf-yang-push {
      prefix yp;
    }

    organization "Cisco Systems, Inc.";

    contact
      " Cisco Systems, Inc.
          Customer Service
          Postal: 170 W Tasman Drive
          San Jose, CA 95134
          Tel: +1 1800 553-NETS
          E-mail: cs-yang@cisco.com";

    description
      "This module contains augmentations on top of IETF yang push.";

    revision "2020-04-27" {
      description
        "Removed augments for modify-subscription nodes";
    }

    revision "2019-03-26" {
      description
        "Add cloud-native transport identity";
      reference
        "Adds a new transport identity cloud-native.";

    }

    revision "2018-08-29" {
      description
        "Add KVGPB encoding and grpc-tcp, cntp-tcp, native transport.";
      reference
        "YANG Datastore Push, draft-ietf-netconf-yang-push-04 and
         draft-ietf-netconf-rfc5277bis-01";

    }

    revision "2018-06-06" {
      description "Add yang-notif-native";
      reference
        "Adds to new stream identity yang-notif-native.";

    }

    revision "2017-08-14" {
      description "Initial version";
      reference
        "adds to YANG Datastore Push, draft-ietf-netconf-yang-push-04
           and draft-ietf-netconf-5277bis-01";

    }


    identity encode-tdl {
      base sn:encodings;
      description "Encode data using TDL.";
    }

    identity encode-kvgpb {
      base sn:encodings;
      description "Encode data using KVGPB.";
    }

    identity grpc-tcp {
      base sn:transport;
      description
        "gRPC notifications in TCP as a transport";
    }

    identity native {
      base sn:transport;
      description
        "native notifications in TCP as a transport";
    }

    identity cntp-tcp {
      base sn:transport;
      description
        "CNTP notifications in TCP as a transport";
    }

    identity cloud-native {
      base sn:transport;
      description
        "Cisco native notifications over a secure tunnel 
       to cloud management service";
    }

    identity tdl-stream {
      base sn:stream;
      description
        "Stream for native TDL datastore updates.";
    }

    identity yang-notif-native {
      base sn:stream;
      description
        "Stream for native platform RFC7950 notifications.";
    }

    grouping tdl-uri-filter {
      description
        "Same definition of tdl filter for many places.";
      leaf tdl-uri-filter {
        type string;
        description
          "Filter to support tdl in XE";
      }
    }  // grouping tdl-uri-filter

    augment /sn:filters/sn:filter/sn:filter-type/yp:update-filter/yp:update-filter {
      description
        "This augmentation add native platform filters
         to the list of configurable filters
         that can be applied to subscriptions.";
      case native-filter {
        uses tdl-uri-filter;
      }  // case native-filter
    }

    augment /sn:subscription-config/sn:subscription/sn:filter-type/yp:update-filter/yp:update-filter {
      description
        "Add native selection filters to filter types.";
      case native-filter {
        uses tdl-uri-filter;
      }  // case native-filter
    }

    augment /sn:subscriptions/sn:subscription/sn:filter-type/yp:update-filter/yp:update-filter {
      description
        "Add native selection filters to filter types.";
      case native-filter {
        uses tdl-uri-filter;
      }  // case native-filter
    }

    augment /sn:establish-subscription/sn:input/sn:filter-type/yp:update-filter/yp:update-filter {
      description
        "Add native selection filters to filter types.";
      case native-filter {
        uses tdl-uri-filter;
      }  // case native-filter
    }

    augment /sn:establish-subscription/sn:output/sn:result/sn:no-success/sn:filter-type/yp:update-filter/yp:update-filter {
      description
        "Add native selection filters to filter types.";
      case native-filter {
        uses tdl-uri-filter;
      }  // case native-filter
    }

    augment /sn:subscription-started/sn:filter-type/yp:update-filter/yp:update-filter {
      description
        "This augmentation allows native platform filter
         options to be included as part of the notification that a
         subscription has started.";
      case native-filter {
        uses tdl-uri-filter;
      }  // case native-filter
    }

    augment /sn:subscription-modified/sn:filter-type/yp:update-filter/yp:update-filter {
      description
        "This augmentation allows native platform filter
         options to be included as part of the notification
         that a subscription has been modified.";
      case native-filter {
        uses tdl-uri-filter;
      }  // case native-filter
    }
  }  // module cisco-xe-ietf-yang-push-ext