The way to create mixed task from gcs import

I would like to have mixed data types in tasks (.png and .csv(time series label)) for a task.
I need to import data from GCS.
I tried this by refering to the local storage information below on manual, but it didn’t work. Is there a way to create mixed data types using import data from GCS?

—manual
[{
“id”: 1,
“data”: {
“audio”: “/data/local-files/?d=dataset1/audio/1.wav”,
“image”: “/data/local-files/?d=dataset1/images/1.jpg”
}
},
{
“id”: 2,
“data”: {
“audio”: “/data/local-files/?d=dataset1/audio/2.wav”,
“image”: “/data/local-files/?d=dataset1/images/2.jpg”
}
}]