code: def test_fig_close():
      # save the state of Gcf.figs
      init_figs = copy.copy(Gcf.figs)
  
      # make a figure using pyplot interface
      fig = plt.figure()
  
      # simulate user clicking the close button by reaching in
      # and calling close on the underlying Qt object
      fig.canvas.manager.window.close()
  
      # assert that we have removed the reference to the FigureManager
      # that got added by plt.figure()
      assert init_figs == Gcf.figs
  
imports: import copy
  import importlib
  import os
  import signal
  import sys
  from datetime import date, datetime
  from unittest import mock
  import pytest
  import matplotlib
  from matplotlib import pyplot
  from matplotlib._pylab_helpers import Gcf
  from matplotlib import _c_internal_utils
label_desc: Use image node_id 2 for calling a global function with example usage: test_fig_close() without return types