code: def dnld_goa(self, species, ext='gaf', item=None, fileout=None):
          
          basename = self.get_basename(species, ext, item)
          src = os.path.join(self.ftp_src_goa, species.upper(), "{F}.gz".format(F=basename))
          dst = os.path.join(os.getcwd(), basename) if fileout is None else fileout
          dnld_file(src, dst, prt=sys.stdout, loading_bar=None)
          return dst
docs: Download GOA source file name on EMBL-EBI ftp server.