code: def test_sanity():
      with open(filename, "rb") as test_file:
          font = BdfFontFile.BdfFontFile(test_file)
  
      assert isinstance(font, FontFile.FontFile)
      assert len([_f for _f in font.glyph if _f]) == 190
  
imports: from __future__ import annotations
  import pytest
  from PIL import BdfFontFile, FontFile
label_desc: Use image node_id 1 for calling a global function with example usage: test_sanity() without return types