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: rails_config_file_loader.rb
    path of file: ./repos/racecar/lib/racecar
    
    the code of the file until where you have to start completion: # frozen_string_literal: true

module Racecar
  module Rails
    
    def self.load!
      config_file = "config/racecar.yml"

      begin
        require "rails"
      rescue LoadError
        # Not a Rails application.
      end