module ietf-foo {

    yang-version 1;

    namespace
      "urn:ietf:params:xml:ns:yang:ietf-foo";

    prefix foo;

    organization "...";

    contact "...";

    description "...";

    revision "2016-03-20" {
      description "Latest revision";
      reference
        "RFC XXXX: Foo Protocol";

    }

  }  // module ietf-foo