code: def _get_id2gos(self, associations, **kws):
          
          options = AnnoOptions(self.evobj, **kws)
          # Default reduction is to remove. For all options, see goatools/anno/opts.py:
          #   * Evidence_Code == ND -> No biological data No biological Data available
          #   * Qualifiers contain NOT
          assc = self.reduce_annotations(associations, options)
          return self._get_dbid2goids(assc) if options.b_geneid2gos else self._get_goid2dbids(assc)
docs: Return given associations in a dict, id2gos