code: def test_axis_artist():
      # Remove this line when this test image is regenerated.
      plt.rcParams["text.kerning_factor"] = 6
  
      fig, ax = plt.subplots()
  
      ax.xaxis.set_visible(False)
      ax.yaxis.set_visible(False)
  
      for loc in ("left", "right", "bottom"):
          helper = AxisArtistHelperRectlinear.Fixed(ax, loc=loc)
          axisline = AxisArtist(
              ax, helper, offset=None, axis_direction=loc
          )
          ax.add_artist(axisline)
  
      # Settings for bottom AxisArtist.
      axisline.set_label("TTT")
      axisline.major_ticks.set_tick_out(False)
      axisline.label.set_pad(5)
  
      ax.set_ylabel("Test")
  
file_path: matplotlib/lib/mpl_toolkits/axisartist/tests/test_axis_artist.py
imports: import matplotlib.pyplot
  from matplotlib.testing.decorators import image_comparison
  from mpl_toolkits.axisartist import AxisArtistHelperRectlinear
  from mpl_toolkits.axisartist.axis_artist import AxisArtist, AxisLabel, LabelBase, Ticks, TickLabels
label_desc: Use image node_id 4 for calling a global function with example usage: test_axis_artist() without return types