code: def test_aesthetics():
      p = (
          ggplot(data, aes(y="y", ymin="ymin", ymax="ymax"))
          + geom_crossbar(aes("x"), size=2)
          + geom_crossbar(
              aes("x+1", alpha="z"), fill="green", width=0.2, size=2
          )
          + geom_crossbar(aes("x+2", linetype="factor(z)"), size=2)
          + geom_crossbar(aes("x+3", color="factor(z)"), size=2)
          + geom_crossbar(aes("x+4", size="z"))
      )
  
      assert p == "aesthetics"
  
label_desc: Use image node_id 1 for calling a global function with example usage: test_aesthetics() without return types