code: def test_advanced():
      df = pd.Series(range(10))
      plot = df.vgplot.line()
  
      plot["encoding"]["x"]["scale"] = {"zero": False}
      spec = plot.to_dict()
      assert "scale" in spec["encoding"]["x"]
      assert spec["encoding"]["x"]["scale"]["zero"] is False
  
label_desc: Use image node_id 1 for calling a global function with example usage: test_advanced() without return types