@Contract(pure = true)
  public static int lastIndexOfAny(@NotNull CharSequence s, @NotNull String chars) {
    for (int i = s.length() - 1; i >= 0; i--) {
      if (containsChar(chars, s.charAt(i))) return i;
    }
    return -1;
  }
@Contract(pure = true)
  public static int lastIndexOfAny(@NotNull CharSequence s, @NotNull String chars)