code: def test_pypy_performance():
      im = Image.new("L", (256, 256))
      im.putdata(list(range(256)) * 256)
  
file_path: pillow/Tests/test_image_putdata.py
imports: from __future__ import annotations
  import sys
  from array import array
  import pytest
  from PIL import Image
  from .helper import assert_image_equal, hopper
label_desc: Use image node_id 3 for calling a global function with example usage: test_pypy_performance() without return types