code: def test_dataset_to_json_lines(
      self, lines, load_json_function, dataset
  ):
      with io.BytesIO() as buffer:
          JsonDatasetWriter(dataset, buffer, lines=lines).write()
          buffer.seek(0)
          exported_content = load_json_function(buffer)
      assert isinstance(exported_content, list)
      assert isinstance(exported_content[0], dict)
      assert len(exported_content) == 10
  
imports: import io
  import json
  import fsspec
  import pytest
  from datasets import Dataset, DatasetDict, Features, NamedSplit, Value
  from datasets.io.json import JsonDatasetReader, JsonDatasetWriter
  from ..utils import assert_arrow_memory_doesnt_increase, assert_arrow_memory_increases
label_desc: Use image node_id 1 for calling the TestJsonDatasetWriter obj's underlying member method code with example usage: obj.test_dataset_to_json_lines(lines, load_json_function, dataset) without return types