code: def wedge():
      w = Image._wedge()
      w90 = w.rotate(90)
  
      (px, h) = w.size
  
      r = Image.new("L", (px * 3, h))
      g = r.copy()
      b = r.copy()
  
      r.paste(w, (0, 0))
      r.paste(w90, (px, 0))
  
      g.paste(w90, (0, 0))
      g.paste(w, (2 * px, 0))
  
      b.paste(w, (px, 0))
      b.paste(w90, (2 * px, 0))
  
      img = Image.merge("RGB", (r, g, b))
  
      return img
  
file_path: pillow/Tests/test_format_hsv.py
imports: from __future__ import annotations
  import colorsys
  import itertools
  from PIL import Image
  from .helper import assert_image_similar, hopper
label_desc: Use image node_id 5 for calling a global function with example usage: wedge() and returns: img