code: def style_factory(name, cli_style):
      
      try:
          style = pygments.styles.get_style_by_name(name)
      except ClassNotFound:
          style = pygments.styles.get_style_by_name('native')
  
      style_tokens = {}
      style_tokens.update(style.styles)
      custom_styles = {string_to_tokentype(x): y for x, y in cli_style.items()}
      style_tokens.update(custom_styles)
  
      class CliStyle(pygments.style.Style):
          default_styles = ''
          styles = style_tokens
  
      return CliStyle
docs: Create a Pygments Style class based on the user's preferences.
      :param str name: The name of a built-in Pygments style.
      :param dict cli_style: The user's token-type style preferences.