struct List[T] {
pub mut:
    head &ListNode[T] = unsafe { nil }
}

struct ListNode[T] {
pub mut:
    value T
    next  &ListNode[T] = unsafe { nil }
}

fn list_new[T]() List[T] {
    return List[T]{}
}

fn listnode_new[T]() &ListNode[T] {
    return &ListNode[T]{0, 0}
}

fn (mut l List[T]) free() {
}

fn test_generic_struct_free() {
    mut list := list_new[string]()
    println(list)
    list.free()
    assert true
}