def _datetime_from_microseconds(value):
    return _EPOCH + datetime.timedelta(microseconds=value)
L{FileLogObserver} is an L{ILogObserver}.
dataset/ETHPy150Open GoogleCloudPlatform/gcloud-python/gcloud/_helpers.py/_datetime_from_microseconds--crossover with--dataset/ETHPy150Open twisted/twisted/twisted/logger/test/test_file.py/FileLogObserverTests.test_interface