code: def deduplicate(objects)
        losers_to_winners = build_losers_to_winners_map(objects)
  
        # Remove all losers.
        losers_to_winners.each_key do |key|
          objects.delete(key)
        end
  
        # Swap the IDs of losers for the IDs of winners.
        objects.each do |id,object|
          object.foreign_keys.each do |property|
            value = object[property]
            if value && losers_to_winners.key?(value)
              object[property] = losers_to_winners[value]
            end
          end
        end
  
        objects
      end
docs: Removes all duplicate objects and re-assigns any foreign keys.
  
   @param [Hash] objects a hash of scraped objects keyed by ID
   @return [Hash] the objects without duplicates