Set following Environment variables:
QUEUE_HOST=QUEUE_BROKER_HOST
QUEUE_PORT=QUEUE_BROKER_PORT
QUEUE_USER=QUEUE_BROKER_USER
QUEUE_PASS=QUEUE_BROKER_PASS

import logging
from QLGR import create_logger


logger = create_logger(__name__, logging.NOTSET)
logger.info('This is an informational message.')
logger.error('This is an error message.')

Check your message broker (rabbitmq in this case), there must be 2 messages on logs queue.