code: public MemcachedServerConfigurationBuilder clientEncoding(MediaType payloadType) {
        attributes.attribute(MemcachedServerConfiguration.CLIENT_ENCODING).set(payloadType);
        return this;
     }
docs: The encoding to be used by clients of the memcached text protocol. When not specified, "application/octet-stream" is assumed.
  When encoding is set, the memcached text server will assume clients will be reading and writing values in that encoding, and
  will perform the necessary conversions between this encoding and the storage format.