+memcached_clone() is similar to memcached_create(3) but it copies the
+defaults and list of servers from the source C<memcached_st>. If you pass a null as
+the argument for the source to clone, it is the same as a call to memcached_create().
+If the destination argument is NULL a C<memcached_st> will be allocated for you.
+
+memcached_servers_reset() allows you to zero out the list of servers that
+the memcached_st has.
+