code: def test_getitem_ellipsis(self):
      assert_array_equal(
          self.s2c[...].sparse.toarray(), self.orig_array
      )
  
imports: import logging
  import unittest
  import numpy
  from numpy.testing import assert_array_equal
  from scipy import sparse
  from scipy.sparse import csc_matrix
  from scipy.special import psi
  import gensim.matutils
label_desc: Use image node_id 7 for calling the TestSparse2Corpus obj's underlying member method code with example usage: obj.test_getitem_ellipsis() without return types