code: def __init__(self, *args, **kwargs):
      unittest.TestCase.__init__(self, *args, **kwargs)
      d = 32
      nt = 0
      nb = 1500
      nq = 500
  
      (_, self.xb, self.xq) = make_binary_dataset(d, nt, nb, nq)
  
imports: import os
  import numpy
  import unittest
  import faiss
  from common_faiss_tests import compare_binary_result_lists, make_binary_dataset
label_desc: Use image node_id 1 to create a new TestBinaryFlat object from inherited base classes: unittest with example: obj = TestBinaryFlat()