code: def test_subplot_reuse():
      ax1 = plt.subplot(121)
      assert ax1 is plt.gca()
      ax2 = plt.subplot(122)
      assert ax2 is plt.gca()
      ax3 = plt.subplot(121)
      assert ax1 is plt.gca()
      assert ax1 is ax3
  
imports: import difflib
  import numpy
  import sys
  from pathlib import Path
  import pytest
  import matplotlib
  from matplotlib.testing import subprocess_run_for_testing
  from matplotlib import pyplot
label_desc: Use image node_id 10 for calling a global function with example usage: test_subplot_reuse() without return types