code: def test_wrap(self):
      index = faiss.IndexBinaryFromFloat(faiss.IndexFlatL2(dbin))
      gc.collect()
      index.add(xbbin)
  
file_path: faiss/tests/test_referenced_objects.py
imports: from __future__ import absolute_import, division, print_function, unicode_literals
  import numpy
  import unittest
  import faiss
  import sys
  import gc
label_desc: Use image node_id 2 for calling the TestReferencedBinary obj's underlying member method code with example usage: obj.test_wrap() without return types