'Creates the underlying option parser for this command.'

def make_parser(self, ctx):

    parser = OptionParser(ctx)
    parser.allow_interspersed_args = ctx.allow_interspersed_args
    parser.ignore_unknown_options = ctx.ignore_unknown_options
    for param in self.get_params(ctx):
        param.add_to_parser(parser, ctx)
    return parser
