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: fogbugz_controller.rb
    path of file: ./repos/gitlabhq/app/controllers/import
    
    the code of the file until where you have to start completion: # frozen_string_literal: true

class Im
    
  def user_map
    @user_map ||= begin
      user_map = client.user_map

      stored_user_map = session[:fogbugz_user_map]
      user_map.update(stored_user_map) if stored_user_map

      user_map
    end