/**
 * WAL entry serialization and deserialization.
 *
 * Fixed 48-byte format:
 * [magic:4][version:2][opType:1][flags:1][seqNum:8][offset:8][length:4][keyHash:8][reserved:4][checksum:4][trailer:4]
 */
import type { WalEntry, DeserializeWalResult } from './types';
/**
 * Compute an 8-byte hash of a key for validation during recovery.
 * Uses FNV-1a hash truncated to 8 bytes.
 */
export declare function hashKey(key: string): Uint8Array;
/**
 * Serialize a WAL entry to a fixed 48-byte buffer.
 */
export declare function serializeWalEntry(entry: WalEntry): Uint8Array;
/**
 * Deserialize a WAL entry from bytes.
 * Returns null if the entry is invalid or corrupted.
 */
export declare function deserializeWalEntry(data: Uint8Array, startOffset?: number): DeserializeWalResult | null;
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