import type { SqliteDb, SqliteTransaction } from './db.js';
/**
 * Bump the one `durability_mark` row inside an open transaction, so that the transaction has a
 * frame to commit whatever else it wrote. The row's count means nothing; a sync needs a change to
 * commit, because a transaction that changed nothing writes no frame and syncs nothing.
 */
export declare function bumpDurabilityMark(tx: SqliteTransaction): Promise<void>;
/**
 * Sync the database: one synced transaction (`SqliteTransactionOptions.synced`) that bumps the
 * `durability_mark` row. Its commit syncs the write-ahead log, which is one append-only file, so
 * every earlier commit on this database — the block store's, the key-value store's and the identity
 * helper's, all on one connection — survives a power cut once this resolves. Every sync in the
 * package goes through this helper or through a synced transaction that writes rows of its own
 * (`SqliteBatchBackend`).
 */
export declare function syncSqliteDb(db: SqliteDb): Promise<void>;
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