Reading snapshots from firebase is fairly simple, although transferring the information to arrays is more complicated. I have this snapshot 

```
Snap (01-08-2019) {
    Sleep = "6.25 hrs";
    "Time Uploaded" = "07:10 AM";
}
Snap (01-09-2019) {
    Sleep = "6.72 hrs";
    "Time Uploaded" = "07:19 AM";
}
Snap (01-10-2019) {
    Sleep = "6.55 hrs";
    "Time Uploaded" = "07:10 AM";
}

```

How would I be able to make one array for the date, one for the sleep, and one for the time uploaded.