test_return_t confirm_keys_dont_exist(memcached_st *memc, const char * const *keys, const size_t number_of_keys);
test_return_t print_keys_by_server(memcached_st *memc);
size_t confirm_key_count(memcached_st *memc);
test_return_t confirm_keys_dont_exist(memcached_st *memc, const char * const *keys, const size_t number_of_keys);
test_return_t print_keys_by_server(memcached_st *memc);
size_t confirm_key_count(memcached_st *memc);