I have the following MWE:

```
struct PlotX
X
Y
end
function test(X, Y...)
len=length(Y)
println(len)
println(typeof(Y))
PlotX(X, Y)
end
T = 0:0.1:2pi
X = sin.(T)
Y = cos.(T)
p1 = test(T, X, Y);
p2 = test(p1.X, p1.Y);
nothing
```

Output:

```
2
Tuple{Vector{Float64}, Vector{Float64}}
1
Tuple{Tuple{Vector{Float64}, Vector{Float64}}}
```

What I want to achieve is to use the struct `p1`

and call the function `test`

such that the second call has the same result as the first call.

How can I avoid to get a `Tuple{Tuple{Vector{Float64}, Vector{Float64}}}`

and get a `Tuple{Vector{Float64}, Vector{Float64}}`

in the second call instead?