new_contents: import logging
  
  class MongoCluster(object):
  
      log = logging.getLogger('Clusters.Mongo')
      log.setLevel(logging.DEBUG)
      ch = logging.StreamHandler()
      ch.setLevel(logging.DEBUG)
      formatter = logging.Formatter(
              '%(asctime)s [%(name)s] %(levelname)s: %(message)s',
              datefmt = '%H:%M:%S')
      ch.setFormatter(formatter)
      log.addHandler(ch)
  
  
subject: Set up logging for a MongoDB cluster