code: def get_example(self, i):
      return self.values[i]
  
file_path: chainer/tests/chainer_tests/dataset_tests/test_dataset_mixin.py
imports: import unittest
  import numpy
  from chainer import dataset
  from chainer import testing
label_desc: Use image node_id 3 for calling the SimpleDataset obj's underlying member method code with example usage: obj.get_example(i) and returns: self