code: def add_optional_parameters(detail_json, detail, rating, rating_n, popularity, current_popularity, time_spent):
      
  
      if rating is not None:
          detail_json["rating"] = rating
      elif "rating" in detail:
          detail_json["rating"] = detail["rating"]
  
      if rating_n is not None:
          detail_json["rating_n"] = rating_n
  
      if "international_phone_number" in detail:
          detail_json["international_phone_number"] = detail["international_phone_number"]
  
      if current_popularity is not None:
          detail_json["current_popularity"] = current_popularity
  
      if popularity is not None:
          popularity, wait_times = get_popularity_for_day(popularity)
  
          detail_json["populartimes"] = popularity
          detail_json["time_wait"] = wait_times
  
      if time_spent is not None:
          detail_json["time_spent"] = time_spent
  
      return detail_json
docs: check for optional return parameters and add them to the result json
      :param detail_json:
      :param detail:
      :param rating:
      :param rating_n:
      :param popularity:
      :param current_popularity:
      :param time_spent:
      :return: