code: def test_draw_wraper_forward_input():
      class TestKlass(martist.Artist):
          def draw(self, renderer, extra):
              return extra
  
      art = TestKlass()
      renderer = mbackend_bases.RendererBase()
  
      assert "aardvark" == art.draw(renderer, "aardvark")
      assert "aardvark" == art.draw(renderer, extra="aardvark")
  
imports: import io
  from itertools import chain
  import numpy
  import pytest
  import matplotlib.colors
  import matplotlib.pyplot
  import matplotlib.patches
  import matplotlib.lines
  import matplotlib.path
  import matplotlib.transforms
  import matplotlib.collections
  import matplotlib.artist
  import matplotlib.backend_bases
  import matplotlib
  from matplotlib.testing.decorators import check_figures_equal, image_comparison
label_desc: Use image node_id 21 for calling a global function with example usage: test_draw_wraper_forward_input() and returns: extra