code: def test_instantiate():
      sl = Searchlight(sl_rad=5, max_blk_edge=10)
      assert sl
  
file_path: brainiak/tests/searchlight/test_searchlight.py
imports: from collections import namedtuple
  import numpy
  from mpi4py import MPI
  import conftest
  from brainiak.searchlight.searchlight import Searchlight
  from brainiak.searchlight.searchlight import Diamond, Ball
label_desc: Use image node_id 8 for calling a global function with example usage: test_instantiate() without return types