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: base_update_service.rb
    path of file: ./repos/gitlabhq/app/services/boards/lists
    
    the code of the file until where you have to start completion: # frozen_string_literal: true

module Boards
  module Lists
    class BaseUpdateService <
    
      def execute(list)
        if execute_by_params(list)
          success(list: list)
        else
          message = list.errors.empty? ? 'The update was not successful.' : list.errors.messages

          error(message, { list: list })
        end