code: def test_smoothed_pdf():
      ht = hl.utils.range_table(100)
      hl.plot.smoothed_pdf(ht.idx)
  
file_path: hail/hail/python/test/hail/plot/test_plot.py
imports: import pytest
  from unittest.mock import patch
  import hail
label_desc: Use image node_id 4 for calling a global function with example usage: test_smoothed_pdf() without return types