Method print

base/src/main/java/net/time4j/Duration.java:4866–4873

(
            TemporalAmount threeten,
            Appendable buffer
        )

         * @since   4.0
         */
        public void print(
            TemporalAmount threeten,
            Appendable buffer
        ) throws IOException {

            this.print(Duration.from(threeten), buffer);

        }

        @Override
        protected Duration<U> convert(Map<U, Long> map, boolean negative) {