protected abstract Pane<T> resetPaneTo(final Pane<T> pane, long startInMs);
@Test
    void testResetPaneTo() {
        Pane<LongAdder> currentPane = window.currentPane();
        currentPane.getValue().add(2);
        currentPane.getValue().add(1);
        assertEquals(3, currentPane.getValue().sum());
        window.resetPaneTo(currentPane, System.currentTimeMillis());
        assertEquals(0, currentPane.getValue().sum());
        currentPane.getValue().add(1);
        assertEquals(1, currentPane.getValue().sum());
    }