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: urls_helper.rb
    path of file: ./repos/thredded/app/helpers/thredded
    
    the code of the file until where you have to start completion: # frozen_string_literal: true

module Thredded
  module 
    
    def unread_topics_path(messageboard: nil, **params)
      params[:only_path] = true
      if messageboard
        unread_messageboard_topics_url(messageboard, params)
      else
        unread_topics_url(params)
      end