warn_logger = _SfaLogger(loggername='warning', level=logging.WARNING)
error_logger = _SfaLogger(loggername='error', level=logging.ERROR)
critical_logger = _SfaLogger(loggername='critical', level=logging.CRITICAL)
warn_logger = _SfaLogger(loggername='warning', level=logging.WARNING)
error_logger = _SfaLogger(loggername='error', level=logging.ERROR)
critical_logger = _SfaLogger(loggername='critical', level=logging.CRITICAL)