class_docstr: longest common subsequence similarity
  
  https://en.wikipedia.org/wiki/Longest_common_subsequence_problem
class_docstr_tok: ["longest","common","subsequence","similarity","https",":","\/\/en.wikipedia.org\/wiki\/Longest_common_subsequence_problem"]
code: def similarity(self, *sequences) -> int:
      return len(self(*sequences))
  
imports: from __future__ import annotations
  from difflib import SequenceMatcher
  from typing import Any
  from ..utils import find_ngrams
  from .base import BaseSimilarity
  from .types import TestFunc
label_desc: Use image node_id 5 for calling the LCSSeq obj's underlying member method code with example usage: obj.similarity() and returns: len