docs: protected void beforeBody(FacesContext facesContext, UIData uiData) throws IOException
      {
          ResponseWriter writer = facesContext.getResponseWriter();
  
          renderCaptionFacet(facesContext, writer, uiData);
          renderColgroupsFacet(facesContext, writer, uiData);
          renderFacet(facesContext, writer, uiData, true);
          renderFacet(facesContext, writer, uiData, false);
      }