code: def test_setp():
      # Check empty list
      plt.setp([])
      plt.setp([[]])
  
      # Check arbitrary iterables
      fig, ax = plt.subplots()
      lines1 = ax.plot(range(3))
      lines2 = ax.plot(range(3))
      martist.setp(chain(lines1, lines2), "lw", 5)
      plt.setp(ax.spines.values(), color="green")
  
      # Check *file* argument
      sio = io.StringIO()
      plt.setp(lines1, "zorder", file=sio)
      assert sio.getvalue() == "  zorder: float\n"
  
imports: import io
  from itertools import chain
  import numpy
  import pytest
  import matplotlib.colors
  import matplotlib.pyplot
  import matplotlib.patches
  import matplotlib.lines
  import matplotlib.path
  import matplotlib.transforms
  import matplotlib.collections
  import matplotlib.artist
  import matplotlib.backend_bases
  import matplotlib
  from matplotlib.testing.decorators import check_figures_equal, image_comparison
label_desc: Use image node_id 10 for calling a global function with example usage: test_setp() without return types