IndexMixin.HeapRangeT

The primary range of the index, which embodies a bidirectional range.

Ends up performing a breadth first traversal (I think..)

removeFront and removeBack are not possible.

mixin template IndexMixin(size_t N, alias KeyFromValue, alias Compare, ThisContainer)
struct HeapRangeT (
bool is_const
) {
Container c;
size_t s;
size_t e;
}

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