Fiber!(SparseList(SparseVBL(Element(zero)))) representation:

array: [0.0 0.0 0.0 0.0 0.0; 0.0 0.0 0.0 0.0 0.0; 0.0 0.0 0.0 0.0 0.0; 0.0 0.0 0.0 0.0 0.0; 0.0 0.0 0.0 0.0 0.0]
fiber: Fiber(SparseList{Int32}(SparseVBL{Int32}(Element{0.0, Float64, Int32}(Float64[]), 5, [1], Int32[], [1]), 5, [1, 1], Int32[]))
array: [1.0 1.0 1.0 1.0 1.0; 1.0 1.0 1.0 1.0 1.0; 1.0 1.0 1.0 1.0 1.0; 1.0 1.0 1.0 1.0 1.0; 1.0 1.0 1.0 1.0 1.0]
fiber: Fiber(SparseList{Int32}(SparseVBL{Int32}(Element{0.0, Float64, Int32}([1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0, 1.0]), 5, [1, 2, 3, 4, 5, 6], [5, 5, 5, 5, 5], [1, 6, 11, 16, 21, 26]), 5, [1, 6], [1, 2, 3, 4, 5]))
array: [0.0 1.0 2.0 2.0; 0.0 0.0 0.0 0.0; 1.0 1.0 2.0 0.0; 0.0 0.0 0.0 0.0]
fiber: Fiber(SparseList{Int32}(SparseVBL{Int32}(Element{0.0, Float64, Int32}([1.0, 1.0, 1.0, 2.0, 2.0, 2.0]), 4, [1, 2, 4, 6, 7], [3, 1, 3, 1, 3, 1], [1, 2, 3, 4, 5, 6, 7]), 4, [1, 5], [1, 2, 3, 4]))

