def exception_filter(self,
record: logging.LogRecord) -> bool:
'''
Add Exception data to the LogRecord if we have any.
'''
added = False
# Do we have exception data to add?
exception = self._record_storage.exception
if exception:
# Have data; add to the log.
record.exception = exception
added = True
# Do we have stack data to add?
stack = self._record_storage.stack
if stack:
# Have data; add to the log.
record.stack = stack
added = True
return added
