Overwrite the exit method to close the GPU API.

def exit(self):
        """Overwrite the exit method to close the GPU API."""
        if self.nvml_ready:
            try:
                pynvml.nvmlShutdown()
            except Exception as e:
                logger.debug("pynvml failed to shutdown correctly ({})".format(e))

        # Call the father exit method
        super(Plugin, self).exit()