code: def make_circle(r):
      t = np.arange(0, np.pi * 2.0, 0.01)
      t = t.reshape((len(t), 1))
      x = r * np.cos(t)
      y = r * np.sin(t)
      return np.hstack((x, y))
  
imports: import matplotlib.pyplot
  import numpy
  import matplotlib.patches
  import matplotlib.path
label_desc: Use image node_id 2 for calling a global function with example usage: make_circle(r) and returns: np