# File lib/dm-serializer/to_csv.rb, line 34
        def to_csv(*args)
          options = args.first || {}
          options = options.to_h if options.respond_to?(:to_h)
          options[:writer] = '' unless options.has_key? :writer

          CSV.generate(options[:writer]) do |csv|
            errors.each do |key, value|
              value.each do |error|
                row = []
                row << key.to_s
                row << error.to_s
                csv << row
              end
            end
          end
        end