`SpeedLimit` has no `iterate` method

[rbalexan]

It would be nice to be able to iterate over or splat a SpeedLimit object since it is a tuple-like object. For example, splatting into a Distribution object or into a clamp statement to avoid having to type everything out would be super convenient (it is not too tedious, but it would be convenient :) )

Currently, both of these throw a MethodError: no method matching iterate(::SpeedLimit), which makes sense.

Uniform(SpeedLimit(0., 10.)...) # using Distributions
clamp(velocity, SpeedLimit(0., 10.)...)

[MaximeBouton]

That would be a neat feature, instead of implementing iterate for SpeedLimit would it make sense to make it a FieldVector or a NamedTuple`?

[MaximeBouton]

The other option is to implement iterate which is not that big of a deal. I am pretty sure there must be some julia package with a macro that defines it for us for any structure. For example there is @unpack: https://github.com/mauro3/Parameters.jl