docs: public static CellStyle setBorder(CellStyle cellStyle, BorderStyle borderSize, IndexedColors colorIndex) {
  		cellStyle.setBorderBottom(borderSize);
  		cellStyle.setBottomBorderColor(colorIndex.index);
  
  		cellStyle.setBorderLeft(borderSize);
  		cellStyle.setLeftBorderColor(colorIndex.index);
  
  		cellStyle.setBorderRight(borderSize);
  		cellStyle.setRightBorderColor(colorIndex.index);
  
  		cellStyle.setBorderTop(borderSize);
  		cellStyle.setTopBorderColor(colorIndex.index);
  
  		return cellStyle;
  	}