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: bust_cache_worker.rb
    path of file: ./repos/forem/app/workers/listings
    
    the code of the file until where you have to start completion: module Listings
  class BustCacheWorker < BustCacheBaseWorker
    def perfor
    
    def perform(listing_id)
      listing = Listing.find_by(id: listing_id)

      return unless listing

      EdgeCache::BustListings.call(listing)
    end