# File lib/active_support/cache/mem_cache_store.rb, line 34
      def write(key, value, options = nil)
        super
        method = options && options[:unless_exist] ? :add : :set
        response = @data.send(method, key, value, expires_in(options), raw?(options))
        response == Response::STORED
      rescue MemCache::MemCacheError => e
        logger.error("MemCacheError (#{e}): #{e.message}")
        false
      end