def to_s
         (@request ? (to_a + request.cookies.to_a) : to_a).map! { |pair| pair.join('=') } .join "\n"
      end
def to_s
         (@request ? (to_a + request.cookies.to_a) : to_a).map! { |pair| pair.join('=') } .join "\n"
      end
Writes a line dlimited string of all the existing and the new cookies. i.e.:
      name1=value1
      name2=value2