lev_best_match          Get the best matched string from a list of
                        candidates
lev_distance            String distance metrics
lev_partial_ratio       Ratio of the best-matching substring
lev_ratio               String similarity ratio
lev_score_multiple      Score multiple candidate strings against a
                        single input
lev_token_set_ratio     Matching based on common tokens
lev_token_sort_ratio    Ordered token matching
lev_weighted_token_ratio
                        Weighted token similarity measure
lev_weighted_token_set_ratio
                        Weighted version of 'lev_token_set_ratio()'
lev_weighted_token_sort_ratio
                        Weighted version of lev_token_sort_ratio()
