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: facebook.rb
    path of file: ./repos/kitsu-server/lib/authorization/assertion
    
    the code of the file until where you have to start completion: # frozen_string_literal: true

module Authorization

    
      def auto_follows
        return unless user!

        follows = friends.map do |friend|
          friend_user = User.where(facebook_id: friend).first
          Follow.where(follower: user!, followed: friend_user).first_or_create if friend_user
        end
        follows.compact
      end