import type { ColumnCodec } from './column';
import type { BinaryReader } from '../protocol/binary_reader';
import type { BinaryWriter } from '../protocol/binary_writer';
/**
 * UUID in ClickHouse native protocol:
 * Stored as two UInt64 LE values, but in a specific byte order:
 *   - First 8 bytes: high part of UUID (bytes 8-15 of the UUID)
 *   - Second 8 bytes: low part of UUID (bytes 0-7 of the UUID)
 * Both are stored in little-endian.
 */
export declare class UuidCodec implements ColumnCodec {
    read(reader: BinaryReader, rows: number): string[];
    write(writer: BinaryWriter, values: unknown[]): void;
}