@NotNull
  public static CharSequence getLinesContent(@NotNull Document document, int line1, int line2, boolean includeNewLine) {
    return getLinesRange(document, line1, line2, includeNewLine).subSequence(document.getImmutableCharSequence());
  }
@NotNull
  public static CharSequence getLinesContent(@NotNull Document document, int line1, int line2, boolean includeNewLine)