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Solve the following problem using Python, implementing the functions described below, one line at a time
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Description:
 def _define_jco_args(cmd_parser):
 """ Define job configuration arguments. Returns groups defined, currently one. """

    jo_group = cmd_parser.add_argument_group('Job options', 'Job configuration options')

    jo_group.add_argument('--job-name', help='Job name')
    jo_group.add_argument('--preload', action='store_true', help='Preload job onto all resources in the instance')
    jo_group.add_argument('--trace', choices=['error', 'warn', 'info', 'debug', 'trace'], help='Application trace level')

    jo_group.add_argument('--submission-parameters', '-p', nargs='+', action=_SubmitParamArg, help="Submission parameters as name=value pairs")

    jo_group.add_argument('--job-config-overlays', help="Path to file containing job configuration overlays JSON. Overrides any job configuration set by the application." , metavar='file')

    return jo_group,