@classmethod
    def is_plugin_data(cls, attributes):
        return attributes.get('metadata', {}).get('class') == 'plugin'
C{--logger} takes precedence over a C{--logfile} command line
dataset/ETHPy150Open openstack/fuel-web/nailgun/nailgun/plugins/manager.py/PluginManager.is_plugin_data--crossover with--dataset/ETHPy150Open twisted/twisted/twisted/test/test_twistd.py/AppLoggerTests.test_configuredLogObserverBeatsLogfile