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: loom_onebox.rb
    path of file: ./repos/discourse/lib/onebox/engine
    
    the code of the file until where you have to start completion: # frozen_string_literal: true

module Onebox
  module Engine
    class LoomOnebox
      include Engine
      include StandardEmbed

   
    
      def to_html
        video_id = url.split("/").last
        video_src = "https://www.loom.com/embed/#{video_id}"

        <<~HTML
          <iframe
            class="loom-onebox"
            src="#{video_src}"
            frameborder="0"
            webkitallowfullscreen
            mozallowfullscreen
            allowfullscreen
          </iframe>
        HTML
      end