How to get vertices in the order they are discovered in BFS?

New to Julia
1

Hi,
I am learning LightGraphs.jl and would like to get the list of vertices in my graph in the order they are discovered in BFS.
Is there a simple way?

2

In case, someone is interested, here is what I had in mind, BFS as an iterator:

using LightGraphs

struct BFS{T}
    g::AbstractGraph{T}
    list_visited::Vector{T}
    list_next::Vector{T}
end

function Base.iterate(b::BFS, state=1)
    push!(b.list_visited,state)
    if length(b.list_visited) == nv(b.g)
        return (state, 0)
    elseif length(b.list_visited) > nv(b.g)
        nothing
    else
        for v in outneighbors(b.g,state) 
            v in b.list_visited || push!(b.list_next, v)
        end
        v = popfirst!(b.list_next)
        return (state, v)
    end
end