Returns the default collector settings

def get_default_config(self):
        """
        Returns the default collector settings
        """
        config = super(NvidiaGPUCollector, self).get_default_config()
        config.update({
            'path': 'nvidia',
            'bin': '/usr/bin/nvidia-smi',
            'stats': [
                'index',
                'memory.total',
                'memory.used',
                'memory.free',
                'utilization.gpu',
                'utilization.memory',
                'temperature.gpu'
            ]
        })
        return config