code: def []=(host,cookies)
        collected = self[host]
  
        cookies.each do |key,value|
          if collected[key] != value
            collected.merge!(cookies)
            @dirty << host
  
            break
          end
        end
  
        return cookies
      end
docs: Add a cookie to the jar for a particular domain.
  
   @param [String] host
     Host or domain name to associate with the cookie.
  
   @param [Hash{String => String}] cookies
     Cookie params.
  
   @since 0.2.2