code: def test_css_named_colors_from_mpl_present():
      mpl_colors = pytest.importorskip("matplotlib.colors")
  
      pd_colors = CSSToExcelConverter.NAMED_COLORS
      for name, color in mpl_colors.CSS4_COLORS.items():
          assert name in pd_colors and pd_colors[name] == color[1:]
  
file_path: pandas/pandas/tests/io/formats/test_to_excel.py
imports: import string
  import pytest
  from pandas.errors import CSSWarning
  import pandas._testing
  from pandas.io.formats.excel import CssExcelCell, CSSToExcelConverter
label_desc: Use image node_id 7 for calling a global function with example usage: test_css_named_colors_from_mpl_present() without return types