+void svmdb_unmap (svmdb_client_t * client);
+void svmdb_local_unset_string_variable (svmdb_client_t * client, char *var);
+void svmdb_local_set_string_variable (svmdb_client_t * client,
+ char *var, char *val);
+char *svmdb_local_get_string_variable (svmdb_client_t * client, char *var);
+void *svmdb_local_get_variable_reference (svmdb_client_t * client,
+ svmdb_namespace_t ns, char *var);