@Override
    public void startClose() {
        channel.startClose();
    }
@Test
    void startCloseTest() {
        try {
            boolean isClosing = channel.isClosing();
            Assertions.assertFalse(isClosing);
            header.startClose();
            isClosing = channel.isClosing();
            Assertions.assertTrue(isClosing);
        } catch (Exception e) {
            e.printStackTrace();
        }
    }