Required Files
- active_support/core_ext/class/attribute
- active_support/core_ext/hash/slice
- active_support/core_ext/hash/except
- active_support/core_ext/array/wrap
- active_support/core_ext/module/anonymous
- action_dispatch/http/mime_types
Namespace
- MODULE ActionController
- MODULE ActionController::ParamsWrapper
- MODULE ActionController::ParamsWrapper::ClassMethods