module bar {
    namespace bar;
    prefix bar;
    yang-version 1.1;

    revision 2017-01-20;

    leaf my-leaf {
        type int32;
        default 100;
        units kilobytes;
    }

    leaf-list my-leaf-list-test {
        type string;
        min-elements 5;
        max-elements 10;
        config false;
    }

    choice my-choice {
        mandatory true;
        bar:custom-property "original arg";
        case c1 {
            leaf c1-leaf {
                type string;
            }
        }

        case c2 {
            leaf c2-leaf {
                type string;
            }
        }
    }

    augment "/my-cont" {
        leaf my-aug-leaf {
            type int32;
            default "def-val";
            units "minutes";
            bar:custom-property "arg";
        }
    }

    container my-cont {
        uses my-grouping {
            refine my-used-leaf {
                default "def-val-added-by-refine";
                bar:custom-property "arg";
            }
        }
    }

    grouping my-grouping {
        leaf my-used-leaf {
            type int32;
            units "days";
        }
    }

    extension custom-property {
        argument name;
    }
}