Function _warn_critical

pager_lib/getmac/getmac.py:1387–1394

(err_msg)

def _warn_critical(err_msg):
    # type: (str) -> None
    log.critical(err_msg)
    warnings.warn(
        "%s. NOTICE: this warning will likely turn into a raised exception in getmac 1.0.0!"
        % err_msg,
        RuntimeWarning,
    )


def initialize_method_cache(