class QueueException(Exception):
    pass


class QueueWriteException(QueueException):
    pass


class QueueReadException(QueueException):
    pass


class QueueRemoveException(QueueException):
    pass


class DataStoreGetException(QueueException):
    pass


class DataStorePutException(QueueException):
    pass


class DataStoreTimeout(QueueException):
    pass


class ScheduleAddException(QueueException):
    pass


class ScheduleReadException(QueueException):
    pass


class ConfigurationError(QueueException):
    pass
