class_docstr: SDRClassifier region unit tests.
code: def setUp(self):
      self.network = _createNetwork()
      self.classifierRegion = self.network.regions["classifier"]
  
file_path: nupic-legacy/tests/unit/nupic/regions/sdr_classifier_region_test.py
imports: import os
  import unittest2
  from nupic.engine import Network
  from nupic.encoders import MultiEncoder
  from nupic.data.file_record_stream import FileRecordStream
label_desc: Use image node_id 1 for calling the SDRClassifierRegionTest obj's underlying member method code with example usage: obj.setUp() without return types