code: def insert_loudest_triggers_option_group(parser, coinc_options=True):
      
      opt_group = insert_bank_bins_option_group(parser)
      opt_group.title = "Options for finding loudest triggers."
      if coinc_options:
          opt_group.add_argument("--statmap-file", default=None,
                                 help="HDF format clustered coincident trigger "
                                      "result file.")
          opt_group.add_argument("--statmap-group", default="foreground",
                                 help="Name of group in statmap file to "
                                      "get triggers.")
      opt_group.add_argument("--sngl-trigger-files", nargs="+", default=None,
                             action=types.MultiDetOptionAction,
                             help="HDF format merged single detector "
                                  "trigger files.")
      opt_group.add_argument("--veto-file", default=None,
                             help="XML file with segment_definer and "
                                  "segment table.")
      opt_group.add_argument("--veto-segment-name", default=None,
                             help="Name of segment to use as veto in "
                                   "XML file's segment_definer table.")
      opt_group.add_argument("--search-n-loudest", type=int, default=None,
                             help="Number of triggers to search over.")
      opt_group.add_argument("--n-loudest", type=int, default=None,
                             help="Number of triggers to return in results.")
      return opt_group
docs: Add options to the optparser object for selecting templates in bins.
  
      Parameters
      -----------
      parser : object
          OptionParser instance.