You are an expert in writing code in many different languages. Your goal is to perform code completion for the following code, keeping in mind the rest of the code and the file meta data.
    Metadata details:
    filename: clean_html.rb
    path of file: ./repos/devdocs/lib/docs/filters/puppeteer
    
    the code of the file until where you have to start completion: module Docs
  class Puppeteer
    class CleanHtmlFilter < Filter
      def call
        at_css('h1').content = 'Puppeteer Documentation'

        # None of the elements to remove have classes, so the order of the remove calls is trivial

        # Remove links to previous versions of the reference
  
    
      def call
        at_css('h1').content = 'Puppeteer Documentation'

        # None of the elements to remove have classes, so the order of the remove calls is trivial

        # Remove links to previous versions of the reference
        at_css('h1 + ul').remove
        at_css('h1 + ul').remove

        # Remove table of contents
        at_css('h1 + h5').remove
        at_css('h1 + ul').remove

        # Make headers bigger by transforming them into a bigger variant
        css('h3').each { |node| node.name = 'h2' }
        css('h4').each { |node| node.name = 'h3' }

        doc
      end