FluentRecordFormatter._structuring may raise AttributeError

[januszry]

json.loads(str(msg)) may not return a dict, it can return:

• int if msg is a json dumped from an int, for example msg = '123'
• list if msg is a json dumped from a list, for example msg = '["s", "1"]'

Only dict have items() method.

So if you get a logger and add a fluent.handler to it, then you execute
logger.info('1')
you will get an AttributeError