code: def test_scaffold_assets_with_json(self):
      toolkit = core.ModelCardToolkit(output_dir=self.mct_dir)
      mc = toolkit.scaffold_assets(
          {
              "model_details": {
                  "name": "json_test",
              }
          }
      )
      self.assertEqual(mc.model_details.name, "json_test")
  
file_path: model-card-toolkit/model_card_toolkit/core_test.py
imports: import os
  from absl import flags
  from absl.testing import absltest
  from model_card_toolkit import core
  from model_card_toolkit.proto import model_card_pb2
  from model_card_toolkit.utils import io_utils
label_desc: Use image node_id 3 for calling the CoreTest obj's underlying member method code with example usage: obj.test_scaffold_assets_with_json() without return types