code: def test_set_drawstyle():
      x = np.linspace(0, 2 * np.pi, 10)
      y = np.sin(x)
  
      fig, ax = plt.subplots()
      (line,) = ax.plot(x, y)
      line.set_drawstyle("steps-pre")
      assert len(line.get_path().vertices) == 2 * len(x) - 1
  
      line.set_drawstyle("default")
      assert len(line.get_path().vertices) == len(x)
  
imports: import itertools
  import platform
  import timeit
  from types import SimpleNamespace
  from cycler import cycler
  import numpy
  from numpy.testing import assert_array_equal
  import pytest
  import matplotlib
  import matplotlib
  from matplotlib import _path
  import matplotlib.lines
  from matplotlib.markers import MarkerStyle
  from matplotlib.path import Path
  import matplotlib.pyplot
  import matplotlib.transforms
  from matplotlib.testing.decorators import image_comparison, check_figures_equal
label_desc: Use image node_id 13 for calling a global function with example usage: test_set_drawstyle() without return types