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: service.rb
    path of file: ./repos/forem/app/services/exporter
    
    the code of the file until where you have to start completion: require "zip"

module Exporter
  class Service
    attr_reader :user

    EXPORTERS = [
      Exporter::Articles,
      Exporter::Comments,
    ].freeze

    def initialize(user)
      @user = user
    end

    def export(email, config: {})
      exports = {}

      # export content with filenames
      EXPORTERS.each do |exporter|
     
    
    def zip_exports(exports)
      buffer = StringIO.new
      Zip::OutputStream.write_buffer(buffer) do |stream|
        exports.each do |name, content|
          stream.put_next_entry(
            name,
            nil, # comment
            nil, # extra
            Zip::Entry::DEFLATED,
            Zlib::BEST_COMPRESSION,
          )
          stream.write content
        end
      end
      buffer
    end