reset method
void
reset()
상태 초기화
Implementation
void reset() {
mockUser = null;
mockFailure = null;
mockServerToken = null;
delay = null;
_currentUser = null;
_serverToken = null;
_expiresAt = null;
_initialized = false;
_failuresRemaining = 0;
_failureForRetry = null;
resetCounters();
}