def validated(duration, unit):
if (str(unit).upper() in ['H', 'M', 'D']) and \
((str(unit).upper() == 'D' and (0 < duration <= 365)) or \
(str(unit).upper() == 'H' and (0 < duration <= 23)) or \
(str(unit).upper() == 'M' and (0 < duration <= 59))):
return True
else:
logger.error('Invalid --duration/--unit value.')
return False
