code: def _build_title_method_instance(self):
      self.__check_null_words()
  
      return EdmundsonTitleMethod(self._stemmer, self._null_words)
  
imports: from __future__ import absolute_import
  from __future__ import division, print_function, unicode_literals
  from collections import defaultdict
  from ..nlp.stemmers import null_stemmer
  from ._summarizer import AbstractSummarizer
  from .edmundson_cue import EdmundsonCueMethod
  from .edmundson_key import EdmundsonKeyMethod
  from .edmundson_title import EdmundsonTitleMethod
  from .edmundson_location import EdmundsonLocationMethod
label_desc: Use image node_id 16 for calling the EdmundsonSummarizer obj's underlying member method code with example usage: obj._build_title_method_instance() and returns: EdmundsonTitleMethod