code: def _init_ns2nt(rcntobj):
          
          go2dcnt = rcntobj.go2dcnt
          ntobj = cx.namedtuple("NtD1", "D1 dcnt goobj")
          d0s = rcntobj.depth2goobjs[0]
          ns_nt = [(o.namespace, ntobj(D1="", dcnt=go2dcnt[o.id], goobj=o)) for o in d0s]
          return cx.OrderedDict(ns_nt)
docs: Save depth-00 GO terms ordered using descendants cnt.