Function realsense_sys::rs2_get_notification_severity

pub unsafe extern "C" fn rs2_get_notification_severity(
    notification: *mut rs2_notification, 
    error: *mut *mut rs2_error
) -> rs2_log_severity

retrieve severity from notification handle \param[in] notification handle returned from a callback \param[out] error if non-null, receives any error that occurs during this call, otherwise, errors are ignored \return the notification severity