This code appears to be truncating the event to 32K. Not sure if it is intended or why it's done.
https://github.com/python-beaver/python-beaver/blob/master/beaver/transports/base_transport.py#L119

The affect is that lines larger than 32KB aren't handled.
While this may be an unusual case, I do have messages that are larger than this sometimes (raw request logs), this should at least be configurable.