extern int MifareAuth4(mf4Session *session, uint8_t *keyn, uint8_t *key, bool activateField, bool leaveSignalON, bool verbose);
extern uint8_t mfNumBlocksPerSector(uint8_t sectorNo);
extern int MifareAuth4(mf4Session *session, uint8_t *keyn, uint8_t *key, bool activateField, bool leaveSignalON, bool verbose);
extern uint8_t mfNumBlocksPerSector(uint8_t sectorNo);