private static int getStringToJoinMaxLength(Request request, int symbolsToSkip) {
    int leftLineStartOffset = getLeftLineStartOffset(request);
    final int margin = CodeStyle.getSettings(request.leftElem.getContainingFile()).getRightMargin(PythonLanguage.getInstance());
    int leftLineLength = request.document.getLineEndOffset(request.document.getLineNumber(leftLineStartOffset)) - leftLineStartOffset;
    return margin - leftLineLength - symbolsToSkip;
  }
private static int getStringToJoinMaxLength(Request request, int symbolsToSkip)