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: mentionable.rb
    path of file: ./repos/bluedoc/app/models/concerns
    
    the code of the file until where you have to start completion: # frozen_string_literal: true

module Mentionable
  extend ActiveSu
    
  def mention_actor_id
    case self.class.name
    when "Comment"
      user_id
    when "Doc"
      current_editor_id
    end