code: def test_indexing(self):
      assert_equal(self.result[0], 1)
      assert_equal(self.result[1], 2)
      assert_equal(self.result[2], 3)
      assert_equal(self.result[-1], 3)
      with pytest.raises(IndexError, match="index out of range"):
          self.result[3]
  
imports: import pytest
  import pickle
  from numpy.testing import assert_equal
  from scipy._lib._bunch import _make_tuple_bunch
label_desc: Use image node_id 3 for calling the TestMakeTupleBunch obj's underlying member method code with example usage: obj.test_indexing() without return types