@Override
        public int hashCode() {
            final int prime = 31;
            int result = 1;
            long temp;
            temp = Double.doubleToLongBits(value);
            result = prime * result + (int) (temp ^ (temp >>> 32));
            return result;
        }
Show the (single) supported standard type representation of a Value instance.
container-core/src/main/java/com/yahoo/metrics/simple/Value.java