    # File lib/memcache/local_server.rb, line 25
        def get(keys, cas = false)
          if keys.kind_of?(Array)
            hash = {}
            keys.each do |key|
              key = key.to_s
              val = get(key)
              hash[key] = val if val
            end
            hash
          else
            key = cache_key(keys)
            if @expiry[key] and Time.now > @expiry[key]
              @data[key]   = nil
              @expiry[key] = nil
            end
            @data[key]
          end
        end