code: def check_output(self, want, got, optionflags):
      if IGNORE_RESULT & optionflags:
          return True
      return OutputChecker.check_output(self, want, got, optionflags)
  
imports: import doctest
  import sys
  from os.path import abspath, dirname, join
label_desc: Use image node_id 1 for calling the CustomOutputChecker obj's underlying member method code with example usage: obj.check_output(want, got, optionflags) and returns: OutputChecker, True