module Hashie::Extensions::IgnoreUndeclared

def initialize_attributes(attributes)
  return unless attributes
  klass = self.class
  translations = klass.respond_to?(:translations) && klass.translations || []
  super(attributes.select { |attr, _| klass.property?(attr) || translations.include?(attr) })
end

def property_exists?(property)
  self.class.property?(property)
end