<SYSTEM_TASK:>
Solve the following problem using Python, implementing the functions described below, one line at a time
<END_TASK>
<USER_TASK:>
Description:
 def init_logger():
 """Initialize the logger and set its format """

    formatter = logging.Formatter('%(levelname)s: %(message)s')
    console = logging.StreamHandler(stream=sys.stdout)
    console.setLevel(logging.INFO)
    console.setFormatter(formatter)
    logger.addHandler(console)