docs: def split_css_for_ie_selector_limit(input_file, output_file):
      """
      Splits a large CSS file into several smaller files, each one
      containing less than the IE 4096 selector limit.
      """
      from .modules import bless, utils
  
      if not isinstance(input_file, str):
          raise RuntimeError('CSS splitter takes only a single input file.')
  
      return {
          'dependencies_fn': utils.no_dependencies,
          'compiler_fn': bless.bless_css,
          'input': input_file,
          'output': output_file,
          'kwargs': {},
      }