code: def test_add_points_batch4(self):
      self.assertRaises(
          ValueError,
          nmslib.addDataPointBatch,
          self.index,
          np.array([0, 1, 2], dtype=np.int32),
          np.array(
              [[0.1, 0, 0.2], [0, 0, 0.3], [0.4, 0.5, 0.6]],
              dtype=np.float32,
          ),
      )
  
imports: import unittest
  import numpy.testing
  import os
  import numpy
  import nmslib
label_desc: Use image node_id 6 for calling the SparseTests obj's underlying member method code with example usage: obj.test_add_points_batch4() without return types