code: def get_term_weights(self, num_tokens, term_frequencies, idfs):
      return term_frequencies
  
imports: from collections import defaultdict
  import math
  import unittest
  from gensim.models.bm25model import BM25ABC
  from gensim.models import OkapiBM25Model, LuceneBM25Model, AtireBM25Model
  from gensim.corpora import Dictionary
label_desc: Use image node_id 3 for calling the BM25Stub obj's underlying member method code with example usage: obj.get_term_weights(num_tokens, term_frequencies, idfs) and returns: term_frequencies