How to create and use SplayTree in Julia

using DataStructures

# create a new spaly tree 
splayTree = SplayTree();

push!(splayTree, 1)
push!(splayTree, 5)
push!(splayTree, 2)
push!(splayTree, 4)
push!(splayTree, 10)

for k in 1:length(splayTree)
    println("tree[$(k)] :", splayTree[k] )
end


#check if the spalytree contains a key
println("Check if spalytree has key 4 :", haskey(splayTree, 4))

# deleting 4 from the splayTree
delete!(splayTree, 4)

println("After deleting 4, The spalyTree is")

# print the elements of splayTree
for k in 1:length(splayTree)
    println("tree[$(k)] :", splayTree[k] )
end