module ActiveModel::Serializers::JSON

def as_json(options = nil)
  hash = serializable_hash(options)
  if include_root_in_json
    custom_root = options && options[:root]
    hash = { custom_root || self.class.model_name.element => hash }
  end
  hash
end

def from_json(json)
  hash = ActiveSupport::JSON.decode(json)
  hash = hash.values.first if include_root_in_json
  self.attributes = hash
  self
end