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/sass
    
    the code of the file until where you have to start completion: module Docs
  class Sass
    class CleanHtmlFilter < Filter
      def call
        @doc = at_css('#main-content .typedoc', '#main-content')

        css('.sl-c-alert').remove

    
      def call
        @doc = at_css('#main-content .typedoc', '#main-content')

        css('.sl-c-alert').remove

        css('.sl-l-medium-holy-grail__navigation').remove

        css('.sl-r-banner').remove

        css('.site-footer').remove

        css('.tsd-breadcrumb').remove

        # Add id to code blocks
        css('pre.signature').each do |node|

          id = node.content

          if id.match(/\(/)
            id = id.scan(/.+\(/)[0].chop
          end

          if id.include?('$pi')
            node.set_attribute('id', 'pi')
          elsif id.include?('$e')
            node.set_attribute('id', 'e')
          else
            node.set_attribute('id', id)
          end