code: def _rendered_size(text, point_size, font_file):
      
      emu_per_inch = 914400
      px_per_inch = 72.0
  
      font = _Fonts.font(font_file, point_size)
      px_width, px_height = font.getsize(text)
  
      emu_width = int(px_width / px_per_inch * emu_per_inch)
      emu_height = int(px_height / px_per_inch * emu_per_inch)
  
      return emu_width, emu_height
docs: Return a (width, height) pair representing the size of *text* in English
      Metric Units (EMU) when rendered at *point_size* in the font defined in
      *font_file*.