code: def test_radar_item_base(fake_writer):
      series_names = ["预算分配", "实际开销"]
      series_data = [
          [4300, 10000, 28000, 35000, 50000, 19000],
          [5000, 14000, 28000, 31000, 42000, 21000],
      ]
      radar_item = [
          opts.RadarItem(name=d[0], value=d[1])
          for d in list(zip(series_names, series_data))
      ]
  
      c = (
          Radar()
          .add_schema(
              schema=[
                  opts.RadarIndicatorItem(name="销售", max_=6500),
                  opts.RadarIndicatorItem(name="管理", max_=16000),
                  opts.RadarIndicatorItem(name="信息技术", max_=30000),
                  opts.RadarIndicatorItem(name="客服", max_=38000),
                  opts.RadarIndicatorItem(name="研发", max_=52000),
                  opts.RadarIndicatorItem(name="市场", max_=25000),
              ]
          )
          .add("", radar_item)
          .set_series_opts(label_opts=opts.LabelOpts(is_show=False))
          .set_global_opts(
              title_opts=opts.TitleOpts(title="Radar-基本示例")
          )
      )
      c.render()
      _, content = fake_writer.call_args[0]
      assert_equal(c.theme, "white")
      assert_equal(c.renderer, "canvas")
  
imports: from unittest.mock import patch
  from nose.tools import assert_equal, assert_in
  from pyecharts import options
  from pyecharts.charts import Radar
label_desc: Use image node_id 2 for calling a global function with example usage: test_radar_item_base(fake_writer) without return types