code: def test_replicas(self):
      d = 32
      nq = 100
      nb = 200
  
      (_, xb, xq) = make_binary_dataset(d, 0, nb, nq)
  
      index_ref = faiss.IndexBinaryFlat(d)
      index_ref.add(xb)
  
      Dref, Iref = index_ref.search(xq, 10)
  
      nrep = 5
      index = faiss.IndexBinaryReplicas()
      for _i in range(nrep):
          sub_idx = faiss.IndexBinaryFlat(d)
          sub_idx.add(xb)
          index.addIndex(sub_idx)
      self.assertEqual(index_ref.code_size, index.code_size)
  
      D, I = index.search(xq, 10)
  
      self.assertTrue((Dref == D).all())
      self.assertTrue((Iref == I).all())
  
      index2 = faiss.IndexBinaryReplicas()
      for _i in range(nrep):
          sub_idx = faiss.IndexBinaryFlat(d)
          index2.addIndex(sub_idx)
  
      index2.add(xb)
      D2, I2 = index2.search(xq, 10)
  
      self.assertTrue((Dref == D2).all())
      self.assertTrue((Iref == I2).all())
  
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 for calling the TestReplicasAndShards obj's underlying member method code with example usage: obj.test_replicas() without return types