public static @NotNull TextRange insertBlockComment(int startOffset,
                                                      int endOffset,
                                                      @NotNull Document document,
                                                      @NotNull String prefix,
                                                      @NotNull String suffix) {
    document.insertString(startOffset, prefix);
    document.insertString(endOffset + prefix.length(), suffix);
    return new TextRange(startOffset, endOffset + prefix.length() + suffix.length());
  }
public static @NotNull TextRange insertBlockComment(int startOffset,
                                                      int endOffset,
                                                      @NotNull Document document,
                                                      @NotNull String prefix,
                                                      @NotNull String suffix)