docs: def parseArgs():  # pragma: no cover
      """Parses the command line options and arguments.
  
      :returns: A :py:class:`argparse.Namespace` object created by the
                :py:mod:`argparse` module. It contains the values of the
                different options.
  
      ===================== ====== =========================================
              Options        Type                Description
      ===================== ====== =========================================
      ``--file``            string The MBS file.
      ``--population-file`` string A file containing population information.
      ``--format``          string The output file format.
      ``--title``           string The title of the MDS plot.
      ``--xlabel``          string The label of the X axis.
      ``--ylabel``          string The label of the Y axis.
      ``--out``             string The prefix of the output files.
      ===================== ====== =========================================
  
      .. note::
          No option check is done here (except for the one automatically done by
          argparse). Those need to be done elsewhere (see :py:func:`checkArgs`).
  
      """
      # The INPUT files
      group = parser.add_argument_group("Input File")
      group.add_argument("--file", type=str, metavar="FILE", required=True,
                         help="The MBS file.")
      parser.add_argument("--population-file", type=str, metavar="FORMAT",
                          required=True,
                          help="A file containing population information. "
                               "There must be three columns: famID, indID "
                               "and population information.")
  
      # The graphical options
      group = parser.add_argument_group("Graphical Options")
      addCustomOptions(group)
  
      # The OUTPUT files
      group = parser.add_argument_group("Output File")
      group.add_argument("--out", type=str, metavar="FILE",
                         default="mds",
                         help="The prefix of the output files. [default: "
                              "%(default)s]")
  
      args = parser.parse_args()
  
      return args