mlx-bun library API
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    interface Qwen3VLVisionPrompt {
        embeddings: MlxArray;
        ids: number[];
        mrope: MropeRequestState;
        prefixIdentity?: string;
    }
    Index
    embeddings: MlxArray

    [1, L, H] bf16 spliced input embeddings (caller owns → generate()).

    ids: number[]

    The request's mRoPE positions state (the media input binds it to its forwards).

    prefixIdentity?: string