module IdentityInModule{
    yang-version 1;
    namespace http://huawei.com;
    prefix IdentityInModule;

    identity tunnel-type {
        description
           "Base identity from which specific tunnel types are derived.";
    }

    identity ref-address-family {
        reference "http://www.iana.org/assignments/address-family-numbers/address-family-numbers.xhtml#address-family-numbers-2";
    }
}