Fiber!(SparseVBL(Element(0))) constructors:
initialized fiber: Fiber(SparseVBL{Int32}(Element{0.0, Float64, Int32}([2.0, 2.0, 3.0, 3.0]), 6, [1, 3], [3, 6], [1, 3, 5]))
initialized fiber: Fiber(SparseVBL{Int16}(Element{0.0, Float64, Int32}([2.0, 2.0, 3.0, 3.0]), 6, [1, 3], Int16[3, 6], [1, 3, 5]))
sized fiber: Fiber(SparseVBL{Int32}(Element{0.0, Float64, Int32}(Float64[]), 7, [1, 1], Int32[], [1]))
sized fiber: Fiber(SparseVBL{Int16}(Element{0.0, Float64, Int32}(Float64[]), 7, [1, 1], Int16[], [1]))
empty fiber: Fiber(SparseVBL{Int32}(Element{0.0, Float64, Int32}(Float64[]), 0, [1, 1], Int32[], [1]))
empty fiber: Fiber(SparseVBL{Int16}(Element{0.0, Float64, Int32}(Float64[]), 0, [1, 1], Int16[], [1]))

