Required Files
- active_support/core_ext/array/wrap
- active_support/core_ext/array/conversions
- active_support/core_ext/string/inflections
- active_support/core_ext/object/blank
- active_support/core_ext/hash/reverse_merge
- active_support/ordered_hash
Namespace
- MODULE ActiveModel
- CLASS ActiveModel::Errors
- CLASS ActiveModel::StrictValidationFailed