code: def _select_next_example(self):
      # if the current example is not the last example
      if self._curExample < len(self._examples) - 1:
          self._exampleList_store_selection(self._curExample + 1)
      else:
          # go to the first example
          self._exampleList_store_selection(0)
  
imports: from nltk.parse import MaltParser
  from nltk.sem.drt import DrsDrawer, DrtVariableExpression
  from nltk.sem.glue import DrtGlue
  from nltk.sem.logic import Variable
  from nltk.tag import RegexpTagger
  from nltk.util import in_idle
label_desc: Use image node_id 17 for calling the DrtGlueDemo obj's underlying member method code with example usage: obj._select_next_example() without return types