class LabError(Exception):
    pass


class LabNotFoundError(LabError):
    pass


class LabSpecError(LabError):
    pass


class LabSpecValidationError(LabSpecError):
    pass


class LabGuideNotFoundError(LabError):
    pass


class LabGuideValidationError(LabError):
    pass


class LabRedeemFailedError(LabError):
    pass


class LabAccessForbiddenError(LabError):
    pass


class LabExitForbiddenError(LabError):
    """
    Raised when trying to exit a lab instance that is not in an allowed status.
    Lab can only be exited when status is running, timeout, or creating_failed.
    """

    pass


class LabTaskError(LabError):
    pass


class LabTaskUnrecoverableError(LabTaskError):
    """
    The error is unrecoverable, there is no need to retry it
    """

    pass


class LabTaskRecoverableError(LabTaskError):
    """
    The error is recoverable, can be retried to succeed.
    NOTE: There is a retry count limit, if the error persists, the task will be marked as failed.
    """

    pass