code: def test_stackratio():
      p = ggplot(data, aes("x")) + geom_dotplot(
          bins=15, stackratio=0.75
      )
  
      assert p == "stackratio"
  
file_path: plotnine/tests/test_geom_dotplot.py
imports: import pandas
  from plotnine import aes, geom_dotplot, ggplot
label_desc: Use image node_id 3 for calling a global function with example usage: test_stackratio() without return types