@Override
  public void getChars(int start, int end, char @NotNull [] dest, int destPos) {
    assert end - start <= myEnd - myStart;
    CharArrayUtil.getChars(myChars, dest, start + myStart, destPos, end - start);
  }
@Override
  public void getChars(int start, int end, char @NotNull [] dest, int destPos)