memcached_result_st *result);
memcached_return_t memcached_response(memcached_server_write_instance_st ptr,
char *buffer, size_t buffer_length,
memcached_result_st *result);
memcached_return_t memcached_response(memcached_server_write_instance_st ptr,
char *buffer, size_t buffer_length,