# File activerecord/lib/active_record/serialization.rb, line 13
    def serializable_hash(options = nil)
      if self.class._has_attribute?(self.class.inheritance_column)
        options = options ? options.dup : {}

        options[:except] = Array(options[:except]).map(&:to_s)
        options[:except] |= Array(self.class.inheritance_column)
      end

      super(options)
    end