mlx-bun library API
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    interface LoadContext {
        path: string;
        prototype: Cache;
        arr(slot: TensorSlot): MlxArray;
        grownArr(slot: TensorSlot, offset: number): MlxArray;
        triple(slots: TensorSlot[], at: number): QuantizedTensor;
    }
    Index
    path: string
    prototype: Cache

    The restoring graph's own empty cache for this entry's layer (from its makeCache()), borrowed for the load: what the graph composed into its caches (the TurboQuant read a KVCache carries) reaches the restored one.