code: def test_failing_latex():
      """Test failing latex subprocess call"""
      mpl.rcParams["text.usetex"] = True
      # This fails with "Double subscript"
      plt.xlabel("$22_2_2$")
      with pytest.raises(RuntimeError):
          plt.savefig(io.BytesIO(), format="ps")
  
imports: from collections import Counter
  from pathlib import Path
  import io
  import re
  import tempfile
  import numpy
  import pytest
  from matplotlib import cbook, path, patheffects, font_manager
  from matplotlib.figure import Figure
  from matplotlib.patches import Ellipse
  from matplotlib.testing._markers import needs_ghostscript, needs_usetex
  from matplotlib.testing.decorators import check_figures_equal, image_comparison
  import matplotlib
  import matplotlib.collections
  import matplotlib.colors
  import matplotlib.pyplot
label_desc: Use image node_id 7 for calling a global function with example usage: test_failing_latex() without return types