code: def search(self, *args, **kargs):
      return self.index.search(*args, **kargs)
  
file_path: dgl/examples/pytorch/hilander/utils/faiss_gpu.py
imports: import gc
  import os
  import faiss
  import numpy
  from tqdm import tqdm
label_desc: Use image node_id 2 for calling the faiss_index_wrapper obj's underlying member method code with example usage: obj.search() and returns: self