def update(self, data_set: DownloadableContent):
data_set.status = self.status
data_set.type = self.type
if not self.status.success:
data_set.message = self.message
data_set.dst = None
def _set_failed(content: DownloadableContent, message: str):
content.message = message
content.status = FetcherStatus.FAILED
content.dst = None
