code: def test_marker_paths_pdf():
      N = 7
  
      plt.errorbar(np.arange(N), np.ones(N) + 4, np.ones(N))
      plt.xlim(-1, N)
      plt.ylim(-1, 7)
  
imports: import re
  import numpy
  from numpy.testing import assert_array_equal
  import pytest
  from matplotlib import patches
  from matplotlib.path import Path
  from matplotlib.patches import Polygon
  from matplotlib.testing.decorators import image_comparison
  import matplotlib.pyplot
  from matplotlib import transforms
  from matplotlib.backend_bases import MouseEvent
label_desc: Use image node_id 18 for calling a global function with example usage: test_marker_paths_pdf() without return types