from beats.exceptions import ProjectWasNotStarted, HeartAlreadyBeating, ProjectAlreadyStarted

from beats.exceptions import ProjectWasNotStarted, HeartAlreadyBeating, ProjectAlreadyStarted, NoObjectMatched

    last_beat = Beat(**serialize_from_document(BeatRepository.get_last()))

    try:
        last_beat = Beat(**serialize_from_document(BeatRepository.get_last()))
    except NoObjectMatched:
        return {
            "isBeating": False,
            "project": None,
        }

from .exceptions import CanNotStopNonBeatingHeart, InconsistentEndTime

from .exceptions import CanNotStopNonBeatingHeart, InconsistentEndTime, NoObjectMatched

        return cls.table.find_one(sort=[("start", pymongo.DESCENDING)])

        record = cls.table.find_one(sort=[("start", pymongo.DESCENDING)])
        if not record:
            raise NoObjectMatched()
        return record

class NoObjectMatched(Exception):
    message = "The used filter didn't yield any records"