code: def test_large_mmap_compressed(self):
      fname = get_tmpfile("gensim_models_lsi.tst.gz")
      model = self.model
  
      # test storing the internal arrays into separate files
      model.save(fname, sep_limit=0)
  
      # now load the external arrays via mmap
      return
  
      # turns out this test doesn't exercise this because there are no arrays
      # to be mmaped!
      self.assertRaises(
          IOError, lsimodel.LsiModel.load, fname, mmap="r"
      )
  
imports: import logging
  import unittest
  import numpy
  import scipy.linalg
  from gensim import matutils
  from gensim.corpora.mmcorpus import MmCorpus
  from gensim.models import lsimodel
  from gensim.test import basetmtests
  from gensim.test.utils import datapath, get_tmpfile
label_desc: Use image node_id 9 for calling the TestLsiModel obj's underlying member method code with example usage: obj.test_large_mmap_compressed() without return types