module openconfig-metadata {

    yang-version 1;

    namespace
      "http://openconfig.net/yang/openconfig-metadata";

    prefix oc-metadata;

    import openconfig-extensions {
      prefix oc-ext;
    }
    import ietf-yang-metadata {
      prefix ietf-md;
    }

    organization "OpenConfig working group";

    contact
      "OpenConfig working group
    www.openconfig.net";

    description
      "This module defines metadata types that are defined by
    the OpenConfig group.";

    revision "2020-08-06" {
      description "Initial revision.";
      reference
        "0.1.0";

    }

    oc-ext:openconfig-version "0.1.0";
    ietf-md:annotation "protobuf-metadata" {
      type "binary" {
        length "0..1048000";
      }
      description "A binary marshalled protobuf message, with a size that does not exceed
1MiB containing metadata related to the element of the data tree at which
the metadata annotation is used.

It is expected that this metadata can be both written and read by a
client - and that the value is persistent across system restarts.

A client using this metadata extension should ensure that it is able
to unmarshal its contents successfully. It is suggested that the
payload should be a protobuf.Any message, which has corresponding
type information such that information as to the intended structure
can be retrieved by any reader.";
    }
  }  // module openconfig-metadata