Method SetJsonOptions

cpp/src/arrow/dataset/file_json_test.cc:263–266

                     public JsonScanMixin<TestJsonScan> {
 public:
  void SetJsonOptions(JsonFragmentScanOptions options = {}) {
    opts_->fragment_scan_options =
        std::make_shared<JsonFragmentScanOptions>(std::move(options));
  }
};

class TestJsonScanNode : public FileFormatScanNodeMixin<JsonFormatHelper>,