code: def _adj_for_assc(self):
          
          if self.gene2gos:
              gos_assoc = set(get_b2aset(self.gene2gos).keys())
              if 'item_marks' not in self.kws:
                  self.kws['item_marks'] = {go:'>' for go in gos_assoc}
              if 'include_only' not in self.kws:
                  gosubdag = GoSubDag(gos_assoc, self.gosubdag.go2obj,
                                      self.gosubdag.relationships)
                  self.kws['include_only'] = gosubdag.go2obj
docs: Print only GO IDs from associations and their ancestors.