code: def main():
      """Run according to options in sys.argv and diff classifiers."""
      initLogging(verbose=True)
  
      # Initialize PRNGs
      initExperimentPrng()
  
      # Mock out the creation of the SDRClassifier.
      @staticmethod
      def _mockCreate(*args, **kwargs):
          kwargs.pop("implementation", None)
          return SDRClassifierDiff(*args, **kwargs)
  
      SDRClassifierFactory.create = _mockCreate
  
      # Run it!
      runExperiment(sys.argv[1:])
  
imports: import sys
  from nupic.algorithms.sdr_classifier_diff import SDRClassifierDiff
  from nupic.algorithms.sdr_classifier_factory import SDRClassifierFactory
  from nupic.frameworks.opf.experiment_runner import runExperiment, initExperimentPrng
  from nupic.support import initLogging
label_desc: Use image node_id 1 for calling a global function with example usage: main() and returns: SDRClassifierDiff