Hi, I have a problem with multidispatch. I have a lot of functions defined that take 2 parameters *a* and *b*. These may be a vector and a dict, a dict and an int etc. Or e.g. Union{Any, Vector}.

It all seemed to work well until I decided to add a set of functions where any of the parameters is an Array (not Vector). I believe this must be dispatched with parameters so I changed all Vectors to Array{T,1}.

But with the Union type the dispatch doesn’t do what I’d like it to, see example:

```
d1 = Dict("A" => 1)
d2 = Dict("B" => 2)
d3 = Dict("C" => 3)
function x(a::Array{T,N}, b::Dict) where {T,N}
throw(DomainError("Do not support any arrays!"))
end
function x(a::Union{Any,Array{T,1}}, b::Dict) where T
return 1
end
x([d1,d2], d3)
```

where It throws the DomainError from the first function but I want it to return “1” because [d1,d2] is a Vector! Thanks!