# File lib/thin/response.rb, line 58
      def headers=(key_value_pairs)
        key_value_pairs.each do |k, vs|
          if vs.is_a?(String)
            vs.each_line { |v| @headers[k] = v.chomp }
          else
            vs.each { |v| @headers[k] = v.chomp }
          end
        end
      end