code: def _augment_term_freq_with_unigrams_and_bigrams(
      self, bigrams, term_freq, term_idx_store, unigrams
  ):
      for term in unigrams + bigrams:
          if term in term_idx_store:
              term_freq[term_idx_store.getidx(term)] += 1
  
imports: import string
  from collections import Counter
  import numpy
  import pandas
  from scattertext.CSRMatrixTools import CSRMatrixFactory
  from scattertext.TermDocMatrix import TermDocMatrix
  from scattertext.features.FeatsFromSpacyDoc import FeatsFromSpacyDoc
  from scattertext.indexstore.IndexStore import IndexStore
label_desc: Use image node_id 3 for calling the FeatsFromDoc obj's underlying member method code with example usage: obj._augment_term_freq_with_unigrams_and_bigrams(bigrams, term_freq, term_idx_store, unigrams) without return types