+memcached_return_t memcached_server_add_udp_with_weight(memcached_st *ptr,
+ const char *hostname,
+ in_port_t port,
+ uint32_t weight);
+LIBMEMCACHED_API
+memcached_return_t memcached_server_add_unix_socket_with_weight(memcached_st *ptr,
+ const char *filename,
+ uint32_t weight);
+LIBMEMCACHED_API
+memcached_return_t memcached_server_add_with_weight(memcached_st *ptr, const char *hostname,
+ in_port_t port,
+ uint32_t weight);
+
+/**
+ Operations on Single Servers.
+*/
+LIBMEMCACHED_API
+uint32_t memcached_server_response_count(memcached_server_instance_st self);