typedef struct TQueue<>{
    union Data* tQueue;
    union Data* data;
    struct FileString* string;

    __code whenEmpty(...);
    __code clear(Impl* tQueue, __code next(...));
    __code put(Impl* tQueue, union Data* data, __code next(...));
    __code take(Impl* tQueue, __code next(union Data* data, ...));
    __code isEmpty(Impl* tQueue, __code next(...), __code whenEmpty(...));

    __code sendData(Impl* tQueue, FileString* string, __code next(...));
    __code getData(Impl* tQueue, __code next(...));
    __code next(...);
} TQueue;