code: def test_rgb_pixel():
      p = rgb_pixel(0, 50, 100)
      assert p.red == 0
      assert p.green == 50
      assert p.blue == 100
      assert str(p) == "red: 0, green: 50, blue: 100"
      assert repr(p) == "rgb_pixel(0,50,100)"
  
      p = rgb_pixel(blue=0, red=50, green=100)
      assert p.red == 50
      assert p.green == 100
      assert p.blue == 0
      assert str(p) == "red: 50, green: 100, blue: 0"
      assert repr(p) == "rgb_pixel(50,100,0)"
  
      p.red = 100
      p.green = 0
      p.blue = 50
      assert p.red == 100
      assert p.green == 0
      assert p.blue == 50
      assert str(p) == "red: 100, green: 0, blue: 50"
      assert repr(p) == "rgb_pixel(100,0,50)"
  
label_desc: Use image node_id 1 for calling a global function with example usage: test_rgb_pixel() without return types