docs: def create_bioset_lookup(lookupdb, spectrafns, set_names):
      """Fills lookup database with biological set names"""
      unique_setnames = set(set_names)
      lookupdb.store_biosets(((x,) for x in unique_setnames))
      set_id_map = lookupdb.get_setnames()
      mzmlfiles = ((os.path.basename(fn), set_id_map[setname])
                   for fn, setname in zip(spectrafns, set_names))
      lookupdb.store_mzmlfiles(mzmlfiles)
      lookupdb.index_biosets()