code: def test_empty_line():
      # Smoke-test for gh#23954
      figure = Figure()
      figure.text(0.5, 0.5, "\nfoo\n\n")
      buf = io.BytesIO()
      figure.savefig(buf, format="eps")
      figure.savefig(buf, 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 18 for calling a global function with example usage: test_empty_line() without return types