Required Files
- active_support/core_ext/array/wrap
- active_support/core_ext/class/attribute_accessors
- active_support/core_ext/array/conversions
- active_support/core_ext/hash/conversions
- active_support/core_ext/hash/slice
- builder
Namespace
- MODULE ActiveModel
- MODULE ActiveModel::Serializers
- MODULE ActiveModel::Serializers::Xml