def reopen(self):
if self._closed:<EOL><INDENT>self._worker = _EventLoggerThread(self._event_queue, self._ev_writer,<EOL>self._flush_secs, self._sentinel_event)<EOL>self._worker.start()<EOL>self._closed = False<EOL><DEDENT>
Reopens the EventFileWriter.
        Can be called after `close()` to add more events in the same directory.
        The events will go into a new events file.
        Does nothing if the `EventFileWriter` was not closed.