code: def get_argument_parser():
      
  
      desc = 'Filter FASTA file by chromosome names.'
      parser = cli.get_argument_parser(desc=desc)
  
      parser.add_argument(
          '-f', '--fasta-file', default='-', type=str, help=textwrap.dedent("""\
                  Path of the FASTA file. The file may be gzip'ed.
                  If set to ``-``, read from ``stdin``."""))
  
      parser.add_argument(
          '-s', '--species', type=str,
          choices=sorted(ensembl.SPECIES_CHROMPAT.keys()),
          default='human', help=textwrap.dedent("""\
              Species for which to extract genes. (This parameter is ignored
              if ``--chromosome-pattern`` is specified.)""")
      )
  
      parser.add_argument(
          '-c', '--chromosome-pattern', type=str, required=False,
          default=None, help=textwrap.dedent("""\
              Regular expression that chromosome names have to match.
              If not specified, determine pattern based on the setting of
              ``--species``.""")
      )
  
      parser.add_argument(
          '-o', '--output-file', type=str, required=True,
          help=textwrap.dedent("""\
              Path of output file. If set to ``-``, print to ``stdout``,
              and redirect logging messages to ``stderr``."""))
  
      parser = cli.add_reporting_args(parser)
      
      return parser
docs: Returns an argument parser object for the script.