code: def testComponentSpec_JsonProto(self):
      proto_str = (
          '{"splits": [{"name": "name1", "pattern": "pattern1"}]}'
      )
      spec = _BasicComponentSpec(
          folds=10,
          proto=proto_str,
          input=channel.Channel(type=_InputArtifact),
          output=channel.Channel(type=_OutputArtifact),
      )
      self.assertIsInstance(spec.exec_properties["proto"], str)
      self.assertEqual(spec.exec_properties["proto"], proto_str)
  
imports: import json
  import sys
  from typing import Dict, List
  import unittest
  import tensorflow
  from tfx.dsl.placeholder import placeholder
  from tfx.proto import example_gen_pb2
  from tfx.types import artifact
  from tfx.types import channel
  from tfx.types import component_spec
  from tfx.types.component_spec import ChannelParameter
  from tfx.types.component_spec import ComponentSpec
  from tfx.types.component_spec import ExecutionParameter
  from tfx.types.standard_artifacts import Examples
  from tfx.utils import proto_utils
  from google.protobuf import json_format
  from google.protobuf import text_format
label_desc: Use image node_id 3 for calling the ComponentSpecTest obj's underlying member method code with example usage: obj.testComponentSpec_JsonProto() without return types