module yang {

    yang-version 1;

    namespace
      "urn:ietf:params:xml:ns:yang:1";

    prefix yang;

    import ietf-yang-metadata {
      prefix md;
      revision-date "2016-08-05";
    }

    organization "libyang";

    contact
      "Web:    <https://github.com/CESNET/libyang/>
Author: Radek Krejci <rkrejci@cesnet.cz>";

    description
      "This is a kind of fake model with no data, typedefs or anything
else. libyang uses this module to implement various YANG attributes
defined in RFC 6020.";

    revision "2017-02-20" {
      description
        "Added metadata for NETCONF's edit-config manipulation with ordered
lists and leaf-lists.";
      reference
        "RFC 7950: The YANG 1.1 Data Modeling Language";

    }

    revision "2016-02-11" {
      description "Initial revision";
      reference
        "RFC 6020: YANG - A Data Modeling Language for
        the Network Configuration Protocol (NETCONF)";

    }

    md:annotation "insert" {
      type "enumeration" {
        enum "first";
        enum "last";
        enum "before";
        enum "after";
      }
      reference "RFC7950 section 7.8.6. and section 7.7.9.";
      description "In user ordered leaf-list, the attribute can be used to control
where in the leaf-list the entry is inserted. It can be used during
the NETCONF <edit-config> "create" operations to insert a new list or
leaf-list entry, or during "merge" or "replace" operations to insert
a new list or leaf-list entry or move an existing one.

If the value is "before" or "after", the "value"/"key" attribute
MUST also be used to specify an existing entry in the list or leaf-list.

If no "insert" attribute is present in the "create" operation, it
defaults to "last".";
    }
    md:annotation "value" {
      type "string";
      reference "RFC7950 section 7.7.9.";
      description "In user ordered leaf-list, the attribute must be used if the attribute
insert is used and specifies before/after which existing instance the
new instance should be inserted.";
    }
    md:annotation "key" {
      type "string";
      reference "RFC7950 section 7.8.6.";
      description "In user ordered list, the attribute must be used if the attribute
insert is used and specifies before/after which existing instance the
new instance should be inserted.";
    }
  }  // module yang