code: def test_patch_color_none():
      # Make sure the alpha kwarg does not override 'none' facecolor.
      # Addresses issue #7478.
      c = plt.Circle((0, 0), 1, facecolor="none", alpha=1)
      assert c.get_facecolor()[0] == 0
  
imports: import numpy
  from numpy.testing import assert_almost_equal, assert_array_equal
  import pytest
  import matplotlib
  from matplotlib.patches import Annulus, Ellipse, Patch, Polygon, Rectangle, FancyArrowPatch, FancyArrow, BoxStyle, Arc
  from matplotlib.testing.decorators import image_comparison, check_figures_equal
  from matplotlib.transforms import Bbox
  import matplotlib.pyplot
  from matplotlib import collections, colors, patches, path, transforms, rcParams
  import sys
label_desc: Use image node_id 11 for calling a global function with example usage: test_patch_color_none() without return types