I'm wondering what if I have a attribute:
```
0.123
0.124
0.125
0.126
0.113
0.123
0.133
```

After using this decomposition, I will get
```
decomp["0.12"] -> 5 elements
decomp["0.11"] -> 1 elements
decomp["0.13"] -> 1 elements
```
right?

But when I use `GetSysVal`:
```
decomp["0.12"].Get(0, 0) -> 0.123
```

Is this a correct behavior?