code: def test_up_to_date_blacklist():
      assert mpl.style.core.STYLE_BLACKLIST <= {
          *mpl.rcsetup._validators
      }
  
imports: from contextlib import contextmanager
  from pathlib import Path
  from tempfile import TemporaryDirectory
  import sys
  import numpy
  import pytest
  import matplotlib
  from matplotlib import pyplot, style
  from matplotlib.style.core import USER_LIBRARY_PATHS, STYLE_EXTENSION
label_desc: Use image node_id 16 for calling a global function with example usage: test_up_to_date_blacklist() without return types