code: def get_scores(self, *args) -> pd.Series:
      categories = [str(c) for c in self.corpus_.get_categories()]
      (
          tp,
          fp,
          pos,
          neg,
          tpr,
          fpr,
          invn_tpr,
          invn_fpr,
      ) = self._get_bns_score_for_category_index(
          cat_i=categories.index(str(self.category_name)),
          not_cat_is=[
              categories.index(str(c)) for c in self.not_category_names
          ],
          X=self._get_X() > 0,
          y=self.corpus_._y,
      )
      return pd.Series(invn_tpr - invn_fpr, index=self._get_index())
  
file_path: scattertext/scattertext/termscoring/BNSScorer.py
imports: import pandas
  import numpy
  from scipy.stats import norm
  from scattertext.termscoring.CorpusBasedTermScorer import CorpusBasedTermScorer
label_desc: Use image node_id 5 for calling the BNSScorer obj's underlying member method code with example usage: obj.get_scores() and returns: pd