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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 insert_injfilterrejector_option_group(parser):
 """Add options for injfilterrejector to executable."""

    injfilterrejector_group = \
        parser.add_argument_group(_injfilterrejector_group_help)
    curr_arg = "--injection-filter-rejector-chirp-time-window"
    injfilterrejector_group.add_argument(curr_arg, type=float, default=None,
                                         help=_injfilterer_cthresh_help)
    curr_arg = "--injection-filter-rejector-match-threshold"
    injfilterrejector_group.add_argument(curr_arg, type=float, default=None,
                                         help=_injfilterer_mthresh_help)
    curr_arg = "--injection-filter-rejector-coarsematch-deltaf"
    injfilterrejector_group.add_argument(curr_arg, type=float, default=1.,
                                         help=_injfilterer_deltaf_help)
    curr_arg = "--injection-filter-rejector-coarsematch-fmax"
    injfilterrejector_group.add_argument(curr_arg, type=float, default=256.,
                                         help=_injfilterer_fmax_help)
    curr_arg = "--injection-filter-rejector-seg-buffer"
    injfilterrejector_group.add_argument(curr_arg, type=int, default=10,
                                         help=_injfilterer_buffer_help)
    curr_arg = "--injection-filter-rejector-f-lower"
    injfilterrejector_group.add_argument(curr_arg, type=int, default=None,
                                         help=_injfilterer_flower_help)