code: def test_annulus():
      fig, ax = plt.subplots()
      cir = Annulus((0.5, 0.5), 0.2, 0.05, fc="g")  # circular annulus
      ell = Annulus(
          (0.5, 0.5),
          (0.5, 0.3),
          0.1,
          45,  # elliptical
          fc="m",
          ec="b",
          alpha=0.5,
          hatch="xxx",
      )
      ax.add_patch(cir)
      ax.add_patch(ell)
      ax.set_aspect("equal")
  
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 33 for calling a global function with example usage: test_annulus() without return types