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/forem/app/services/feeds
    
    the code of the file until where you have to start completion: module Feeds
  class CleanHtml
    MEDIUM_TRACKING_PIXEL = "medium.com/_/stat".freeze
    MEDIUM_CATCHPHRASE = "where people are continuing the conversation by highlighting".freeze

    def self.call(html)
      doc = Nokogiri::HTML(html)
      # Remove Medium tracking pixel
      doc.css("img").each do |img|
        img.remove if img.attr("src")&.include?(MEDIUM_T
    
    def self.call(html)
      doc = Nokogiri::HTML(html)
      # Remove Medium tracking pixel
      doc.css("img").each do |img|
        img.remove if img.attr("src")&.include?(MEDIUM_TRACKING_PIXEL)
      end
      # Remove Medium catch phrase
      doc.css("p").each do |paragraph|
        paragraph.remove if paragraph.text.include?(MEDIUM_CATCHPHRASE)
      end

      doc.css("figure").each do |el|
        el.name = "p"
      end

      doc.xpath("//@class").remove
      doc.to_html
    end