code: def convert(self, data):
      if self._convert:
          return "converted"
      else:
          return super(DummyDataset, self).convert(data)
  
file_path: chainer/tests/chainer_tests/dataset_tests/tabular_tests/dummy_dataset.py
imports: import numpy
  import chainer
  from chainer import testing
label_desc: Use image node_id 6 for calling the DummyDataset obj's underlying member method code with example usage: obj.convert(data) and returns: str, super