code: def _tagged_turns_block_reader(self, stream, tagset=None):
      return self._tagged_discourses_block_reader(stream, tagset)[0]
  
imports: import re
  from nltk.corpus.reader.api import *
  from nltk.corpus.reader.util import *
  from nltk.tag import map_tag, str2tuple
label_desc: Use image node_id 11 for calling the SwitchboardCorpusReader obj's underlying member method code with example usage: obj._tagged_turns_block_reader(stream, tagset) and returns: self