Is there a good implementation of a BiDict (invertable Dict)

[djholiver]

Dictionary-like data structure representing a bijective map?

I found one! https://github.com/scheinerman/Bijections.jl For reference, here’s the syntax used by Bijections.jl: julia> b = Bijection(:a, 1) Bijection{Symbol,Int64} (with 1 pairs) julia> b[:a] 1 julia> b(1) :a

Might be what you’re after