code: def test_dump(self):
      # test dump
      self.assertEqual(
          {
              "word": word,
              "postag": postag,
              "head": head,
              "deprel": deprel,
              "sample_id": None,
          },
          sample.dump(),
      )
  
file_path: textflint/test/input/component/sample/test_dp_sample.py
imports: import unittest
  from textflint.input.component.sample.dp_sample import *
label_desc: Use image node_id 4 for calling the TestDPSample obj's underlying member method code with example usage: obj.test_dump() without return types