Oh...
```
julia> @defVar(m, manyrangelb[0:1,10:20,1:1] >= 2)
1-element Array{JuMPDict{T},1}:
 manyrangelb[i,j,k] ≥ 2, for all i in {0..1}, j in {10..20}, k in {1..1}
```
didn't expect that array! Where is that coming from