code: def test_aesthetics():
      p = (
          ggplot(data, aes(y="y", angle="angle", radius="radius"))
          + geom_spoke(aes("x"), size=2)
          + geom_spoke(aes("x+2", alpha="z"), size=2)
          + geom_spoke(aes("x+4", linetype="factor(z)"), size=2)
          + geom_spoke(aes("x+6", color="factor(z)"), size=2)
          + geom_spoke(aes("x+8", size="z"))
      )
  
      assert p == "aesthetics"
  
imports: import numpy
  import pandas
  from plotnine import aes, geom_spoke, ggplot
label_desc: Use image node_id 1 for calling a global function with example usage: test_aesthetics() without return types