Histograms aren't shown in file printout

[aminnj]

julia> using UnROOT

julia> f = ROOTFile(joinpath(dirname(pathof(UnROOT)), "../test/samples/histograms1d2d.root"))
ROOTFile with 5 entries and 14 streamers.
/Users/namin/.julia/dev/UnROOT/src/../test/samples/histograms1d2d.root
# nothing printed out here

julia> keys(f)
5-element Vector{String}:
 "myTH1F"
 "myTH1D"
 "myTH2F"
 "myTH2D"
 "myTH1D_nonuniform"

julia> f["myTH1D"] |> UnROOT.parseTH
([40.0, 2.0], (-2.0:2.0:2.0,), [800.0, 2.0])

The only hint that something is there is the 5 entries and 14 streamers. Trees are printed out, so it would be nice to see histograms there as well.

[aminnj]

an UnROOT.samplefile("histograms1d2d.root") could be useful ;)