class Rails::Application::Configuration

def autoload_lib(ignore:)
  lib = root.join("lib")
  # Set as a string to have the same type as default autoload paths, for
  # consistency.
  autoload_paths << lib.to_s
  eager_load_paths << lib.to_s
  ignored_abspaths = Array.wrap(ignore).map { lib.join(_1) }
  Rails.autoloaders.main.ignore(ignored_abspaths)
end