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: config_file.rb
    path of file: ./repos/artichoke/artichoke-backend/vendor/ruby/lib/rubygems
    
    the code of the file until where you have to start completion: # frozen_string_literal: true
#--
# Copyright 2006 by Chad Fowler, Rich Kilmer, Jim Weirich and others.
    
  def load_api_keys
    check_credentials_permissions

    @api_keys = if File.exist? credentials_path
      load_file(credentials_path)
    else
      @hash
    end