Why so few methods defined for `Atomic` types?

General Usage
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1

I am trying to use Atomic wrapped types, but I find there are very few methods defined; I assuming this is intentional, but I’d be curious to hear more about the limitations that prevent these from being included! A list of calls I tried:

zero(Atomic{Int}) # MethodError
one(Atomic{Int}) # MethodError
# same for rand, typemin, typemax

isequal(Atomic{Int}(1), 1) # false -- this one is extra surprising
isless(Atomic{Int}(1), 2) # MethodError
convert(Int, Atomic{Int}(1)) # MethodError
only(Atomic{Int}(1)) # MethodError

Eventually I found in some GH issue that getindex can be used to unwrap Atomic types, but how come we can’t do more with them directly?