SList: How do I use linearRemove?

[Lemonfiend via Digitalmars-d-learn]

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module main;

void main()
{
        struct Tree { int apples; }

        import std.container;
        SList!Tree list;

        Tree tree = Tree(5);
        list.insert(tree);
        //list.linearRemove(tree); // <-- Error. What is the correct way?
}
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