export type PlaceRecompressionResult = {
    kind: 'recompressed';
    data: Buffer;
    originalBytes: number;
}
/** Not a binary place, or every compressed chunk is already zstd. */
 | {
    kind: 'unchanged';
    data: Buffer;
} | {
    kind: 'unsupported';
    data: Buffer;
    reason: string;
};
/** Whether this Node can recompress places at all. */
export declare function getZstdSupport(): {
    supported: true;
} | {
    supported: false;
    reason: string;
};
export declare function recompressPlace(data: Buffer): PlaceRecompressionResult;
/** Decode one raw LZ4 block, the format's default chunk compression. */
export declare function decompressLz4Block(src: Buffer, uncompressedLength: number): Buffer;
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