code: def from_cli_single_ifo(cls, opt, strain, ifo):
          
          return cls(strain, segment_length=opt.segment_length[ifo],
                     segment_start_pad=opt.segment_start_pad[ifo],
                     segment_end_pad=opt.segment_end_pad[ifo],
                     trigger_start=opt.trig_start_time[ifo],
                     trigger_end=opt.trig_end_time[ifo],
                     filter_inj_only=opt.filter_inj_only,
                     allow_zero_padding=opt.allow_zero_padding)
docs: Calculate the segmentation of the strain data for analysis from
          the command line options.