code: def image_and_patch_example(ax):
      ax.imshow(np.random.random(size=(20, 20)), interpolation="none")
      c = plt.Circle((5, 5), radius=5, label="patch")
      ax.add_patch(c)
  
imports: import matplotlib.pyplot
  import numpy
label_desc: Use image node_id 2 for calling a global function with example usage: image_and_patch_example(ax) without return types