code: def _configure(self, event):
      self._autostep = 0
      (x1, y1, x2, y2) = self._cframe.scrollregion()
      y2 = event.height - 6
      self._canvas["scrollregion"] = "%d %d %d %d" % (x1, y1, x2, y2)
      self._redraw()
  
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 9 for calling the DrtGlueDemo obj's underlying member method code with example usage: obj._configure(event) without return types