class_docstr: Tversky index
  
  https://en.wikipedia.org/wiki/Tversky_index
  https://github.com/Yomguithereal/talisman/blob/master/src/metrics/tversky.js
class_docstr_tok: ["Tversky","index","https",":","\/\/en.wikipedia.org\/wiki\/Tversky_index","https",":","\/\/github.com\/Yomguithereal\/talisman\/blob\/master\/src\/metrics\/tversky.js"]
code: def maximum(self, *sequences: Sequence) -> int:
      return 1
  
imports: from __future__ import annotations
  from functools import reduce
  from itertools import islice, permutations, repeat
  from math import log
  from typing import Sequence
  from .base import Base, BaseSimilarity
  from .edit_based import DamerauLevenshtein
label_desc: Use image node_id 2 for calling the Tversky obj's underlying member method code with example usage: obj.maximum() and returns: int