code: def testWriteReadCpp(self):
      self.checkTMRegionImpl("cpp")
  
file_path: nupic-legacy/tests/unit/nupic/regions/tm_region_test.py
imports: import tempfile
  import unittest
  import numpy
  from nupic.regions.tm_region import TMRegion
label_desc: Use image node_id 3 for calling the TMRegionTest obj's underlying member method code with example usage: obj.testWriteReadCpp() without return types