Method nanos

base/src/main/java/net/time4j/Duration.java:4233–4239

(int num)

         * @see     ClockUnit#NANOS
         */
        public Builder nanos(int num) {

            this.nanosCalled();
            this.update(num, 1L);
            return this;

        }

        /**
         * <p>Creates a new duration conforming to ISO-8601. </p>