mlx-bun library API
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    interface QuantizeDrafterOptions {
        bits: 4 | 8;
        groupSize: 32 | 64;
        onProgress?: (stage: string, message: string, progress: number) => void;
        skipLoadSmoke?: boolean;
    }
    Index
    bits: 4 | 8
    groupSize: 32 | 64
    onProgress?: (stage: string, message: string, progress: number) => void
    skipLoadSmoke?: boolean

    Skip the post-write load smoke (tests exercise loading separately).