code: def test_geom_ribbon():
      ht = hl.utils.range_table(20)
      fig = (
          ggplot(ht, aes(x=ht.idx, ymin=ht.idx * 2, ymax=ht.idx * 3))
          + geom_ribbon()
      )
      fig.to_plotly()
  
file_path: hail/hail/python/test/hail/ggplot/test_ggplot.py
imports: import hail
  from hail.ggplot import *
  import numpy
  import math
label_desc: Use image node_id 5 for calling a global function with example usage: test_geom_ribbon() without return types