module ActionView::Helpers::SanitizeHelper::ClassMethods

def deprecate_option(name)
  ActiveSupport::Deprecation.warn "The #{name} option is deprecated " \
    "and has no effect. Until Rails 5 the old behavior can still be " \
    "installed. To do this add the `rails-deprecated-sanitizer` to " \
    "your Gemfile. Consult the Rails 4.2 upgrade guide for more information."
end