# File lib/termtter/memory_cache.rb, line 21
    def can_use_memcache?
      return unless config.cache.memcached_server
      begin
        require 'memcache'
        MemCache.new(config.cache.memcached_server).stats # when server is wrong, die here.
      rescue StandardError, LoadError
        false
      else
        true
      end
    end