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

module Gitlab
  module BackgroundMigration
    # Backfill draft column on open merge requests based on regex parsing of
    #   their titles.
    #
    class BackfillDraftStatusOnMergeRequestsWithCorre
    
      def perform(start_id, end_id)
        eligible_mrs = MergeRequest.eligible.where(id: start_id..end_id).pluck(:id)

        eligible_mrs.each_slice(10) do |slice|
          MergeRequest.where(id: slice).update_all(draft: true)
        end

        mark_job_as_succeeded(start_id, end_id)
      end