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: tagme_command.rb
    path of file: ./repos/danbooru/app/logical/discord_slash_command
    
    the code of the file until where you have to start completion: # frozen_string_literal: true

class DiscordSlashCommand
  class TagmeCommand < DiscordSlashCommand
    self.name = "tagme"
    self.description = "Automatically tag an image"
    self.options = [{
      name: "url",
      description: "The URL of the image to tag",
      required: false,
      type: ApplicationCommandOptionType::Str
    
    def tagme(url, confidence, limit: 50, size: 500)
      extractor = Source::Extractor.find(url)
      image_url = extractor.image_urls.first
      file = extractor.download_file!(image_url)

      preview = file.preview(size, size)
      ai_tags = autotagger.evaluate!(preview, limit: limit, confidence: confidence)

      return {
        embeds: [{
          description: build_tag_list(ai_tags),
          author: {
            name: "#{Danbooru.config.app_name} Autotagger",
            url: "https://github.com/danbooru/autotagger",
            icon_url: "https://danbooru.donmai.us/images/danbooru-logo-96x96.png",
          },
          image: {
            url: image_url,
          },
        }]
      }
    ensure
      preview&.close
    end