code: def requires(self):
      return dict(
          model=DummyModelTask(),
          data_a=DummyPandasDataFrameTask(param="a"),
      )
  
imports: import logging
  import unittest
  from unittest.mock import patch
  import luigi
  import pandas
  import gokart
label_desc: Use image node_id 1 for calling the DummyWorkFlowWithError obj's underlying member method code with example usage: obj.requires() and returns: dict