Print grouped GO list.

def prt_gos_grouped(self, prt, **kws_grp):
        """Print grouped GO list."""
        prtfmt = self.datobj.kws['fmtgo']
        wrobj = WrXlsxSortedGos(self.name, self.sortobj)
        # Keyword arguments: control content: hdrgo_prt section_prt top_n use_sections
        desc2nts = self.sortobj.get_desc2nts(**kws_grp)
        wrobj.prt_txt_desc2nts(prt, desc2nts, prtfmt)