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function Base.insert!(ll::LinkedList{T}, index::Integer, item::T) where T
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if index == 1
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if isempty(ll)
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return push!(ll, item)
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else
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ll.head = Node{T}(item, ll.head)
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end
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else
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nd = ll.head
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while index > 2
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if nd.next isa EmptyNode
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throw(BoundsError())
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else
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nd = nd.next
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index -= 1
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end
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end
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nd.next = Node{T}(item, nd.next)
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end
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return ll
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end
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