code: def test_dict(self):
      self.assertDictEqual(
          self.row.dict(), {"one": "a", "two": "b", "three": "c"}
      )
  
imports: import unittest
  from agate.mapped_sequence import MappedSequence
label_desc: Use image node_id 19 for calling the TestMappedSequence obj's underlying member method code with example usage: obj.test_dict() without return types