code: def test_index_accuracy(self):
      self.eval_index_accuracy("IVF32,PLSQ2x2x5_Nqint8")
  
imports: import numpy
  import faiss
  import unittest
  from faiss.contrib import datasets
label_desc: Use image node_id 2 for calling the TestIndexIVFProductLocalSearchQuantizer obj's underlying member method code with example usage: obj.test_index_accuracy() without return types