code: def low_frequency_cutoff_from_cli(opts):
      
      # FIXME: this just uses the same frequency cutoff for every instrument for
      # now. We should allow for different frequency cutoffs to be used; that
      # will require (minor) changes to the Likelihood class
      instruments = opts.instruments if opts.instruments is not None else []
      return {ifo: opts.low_frequency_cutoff for ifo in instruments}
docs: Parses the low frequency cutoff from the given options.
  
      Returns
      -------
      dict
          Dictionary of instruments -> low frequency cutoff.