code: def load_index():
      if not os.path.exists(INDEX_FILE):
          raise IndexError(
              "Cannot find index file. Build a new file with "
              "command:\n    python search-index/build.py"
          )
  
      with open(INDEX_FILE, "rb") as f:
          return pickle.load(f)
  
file_path: neupy/site/search-index/search.py
imports: import os
  import pickle
  import argparse
  import nltk
  import numpy
  import scipy.sparse
  from build import INDEX_FILE
label_desc: Use image node_id 1 for calling a global function with example usage: load_index() and returns: pickle