Method microsCalled

base/src/main/java/net/time4j/Duration.java:4334–4343

()

        }

        private void microsCalled() {

            if (this.microsSet) {
                throw new IllegalStateException(
                    "Called twice for: " + MICROS.name());
            }

            this.microsSet = true;

        }

        private void nanosCalled() {