public static boolean isLabelOfEmoji(@NonNull CharSequence label) {
    return JavaEmojiUtils.isLabelOfEmoji(label);
  }
@Test
  public void testIsLabelOfEmoji() {
    Assert.assertTrue(EmojiUtils.isLabelOfEmoji("\uD83D\uDC4D"));
    Assert.assertTrue(EmojiUtils.isLabelOfEmoji("\uD83D\uDC69\u200D\u2708\uFE0F"));

    Assert.assertFalse(EmojiUtils.isLabelOfEmoji("☺"));
    Assert.assertFalse(EmojiUtils.isLabelOfEmoji("A"));
  }