mptyCircle',
                            symbolSize: 50,
                            initialTreeDepth: 3,
                            animationDurationUpdate: 750
                        }
                    ]
                };

                const chart2 = testHelper.create(echarts, 'main2', {
                    title: [
                        'Only root with the radial tree',
                    ],
                    option: option2
                });
            });
            </script>
    </bo