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: gists_importer.rb
    path of file: ./repos/gitlabhq/lib/gitlab/github_gists_import/importer
    
    the code of the file until where you have to start completion: # frozen_string_literal: true

module Gitlab
  module GithubGistsImport
    module Importer
      class GistsImporter
        attr_reader :user, :client, :already_imported_
    
        def spread_parallel_import
          waiter = JobWaiter.new
          worker_arguments = fetch_gists_to_import.map { |gist_hash| [user.id, gist_hash, waiter.key] }
          waiter.jobs_remaining = worker_arguments.size

          schedule_bulk_perform(worker_arguments)
          waiter
        end