code: def cli():
      
      objcli = WrHierCli(sys.argv[1:])
      fouts_txt = objcli.get_fouts()
      if fouts_txt:
          for fout_txt in fouts_txt:
              objcli.wrtxt_hier(fout_txt)
      else:
          objcli.prt_hier(sys.stdout)
docs: Command-line script to print a GO term's lower-level hierarchy.