code: def cli(self, prt=sys.stdout):
          
          kws = self.objdoc.get_docargs(prt=None)
          if os.path.exists(kws['i']):
              obj = NCBIgeneFileReader(kws['i'])
              nts = obj.get_nts()
              if nts:
                  geneid2nt = self._get_geneid2nt(nts)
                  self._wrpy_ncbi_gene_nts(kws['o'], geneid2nt, prt)
          else:
              raise RuntimeError("\n{DOC}\n**ERROR: NO FILE FOUND: {NCBI}".format(
                  NCBI=kws['i'], DOC=__doc__))
docs: Command-line interface to print specified GO Terms from the DAG source .