code: def _get_X(self):
      return (
          self.corpus_.get_metadata_doc_mat()
          if self.use_metadata_
          else self.term_ranker_.get_term_doc_mat()
      )
  
imports: from abc import ABCMeta, abstractmethod
  from typing import Tuple
  import numpy
  import pandas
  from scattertext.ParsedCorpus import ParsedCorpus
  from scipy import stats
  from scipy.sparse import vstack
  from scattertext.util import inherits_from
  from scattertext.termranking import AbsoluteFrequencyRanker
  from scattertext.termranking.TermRanker import TermRanker
label_desc: Use image node_id 14 for calling the CorpusBasedTermScorer obj's underlying member method code with example usage: obj._get_X() and returns: unknown