code: def test_features(self):
      for arch, compilers in arch_compilers.items():
          for cc in compilers:
              FakeCCompilerOpt.fake_info = (arch, cc, "")
              _TestConfFeatures()
  
imports: import unittest
  from os import sys, path
label_desc: Use image node_id 3 for calling the TestConfFeatures obj's underlying member method code with example usage: obj.test_features() without return types