code: def preprocessor(dom):
      "Removes unwanted parts of DOM."
      options = {
          "processing_instructions": False,
          "remove_unknown_tags": False,
          "safe_attrs_only": False,
          "page_structure": False,
          "annoying_tags": False,
          "frames": False,
          "meta": False,
          "links": False,
          "javascript": False,
          "scripts": True,
          "comments": True,
          "style": True,
          "embedded": True,
          "forms": True,
          "kill_tags": ("head",),
      }
      cleaner = Cleaner(**options)
  
      return cleaner.clean_html(domf preprocessor(dom):
      "Removes unwanted parts of DOM."
      options = {
          "processing_instructions": False,
          "remove_unknown_tags": False,
          "safe_attrs_only": False,
          "page_structure": False,
          "annoying_tags": False,
          "frames": False,
          "meta": False,
          "links": False,
          "javascript": False,
          "scripts": True,
          "comments": True,
          "style": True,
          "embedded": True,
          "forms": True,
          "kill_tags": ("head",),
      }
      cleaner = Cleaner(**options)
  
      return cleaner.clean_html(dom)
docs: Removes unwanted parts of DOM.