code: def test_layout_leak():
      # Make sure there aren't any cyclic references when using LayoutGrid
      # GH #25853
      fig = plt.figure(constrained_layout=True, figsize=(10, 10))
      fig.add_subplot()
      fig.draw_without_rendering()
      plt.close("all")
      del fig
      gc.collect()
      assert not any(
          isinstance(obj, mpl._layoutgrid.LayoutGrid)
          for obj in gc.get_objects()
      )
  
imports: import gc
  import numpy
  import pytest
  import matplotlib
  from matplotlib.testing.decorators import image_comparison
  import matplotlib.pyplot
  import matplotlib.transforms
  from matplotlib import gridspec, ticker
label_desc: Use image node_id 45 for calling a global function with example usage: test_layout_leak() without return types