/**
 * Variable-length integer (varint) decode/encode per zstd format.
 * This implementation supports unsigned 32-bit values (1-5 bytes).
 * Little-endian, 7 bits per byte, high bit = continue.
 */
export declare function decodeVarint(data: Uint8Array, offset: number): {
    value: number;
    bytesRead: number;
};
export declare function encodeVarint(value: number): Uint8Array;