>>> from structlog import get_logger
>>> log = get_logger()
>>> log = log.bind(user='anonymous', some_key=23)
>>> log = log.bind(user='hynek', source='http', another_key=42)
>>> log.info('user.logged_in', happy=True)
some_key=23 user='hynek' source='http' another_key=42 happy=True event='user.logged_in'
