code: def test_style_alternating():
      p = (
          ggplot(data, aes("x"))
          + geom_violin(aes(y="y"), style="right-left", fill="green")
          + geom_violin(
              aes(y="y+25"), style="left-right", fill="yellow"
          )
      )
      assert p == "style_alternating"
  
file_path: plotnine/tests/test_geom_violin.py
imports: import numpy
  import pandas
  import pytest
  from plotnine import aes, coord_flip, facet_grid, geom_violin, ggplot
  from plotnine.data import mtcars
label_desc: Use image node_id 6 for calling a global function with example usage: test_style_alternating() without return types