reducedim/test reductions over region: (2, 3) @test #= /cache/build/default-aws-aarch64-ci-1-3/julialang/julia-master/julia-333391feb8/share/julia/test/reducedim.jl:78 =# @inferred(sum(Areduc, dims = region)) ≈ safe_sum(Areduc, region)