import Database from 'better-sqlite3';
export declare const WORKFLOW_DB_SCHEMA_VERSION = 4;
export declare const WORKFLOW_DB_PHYSICAL_SCHEMA_VERSIONS: readonly [1, 2, 3, 4];
export declare const WORKFLOW_DB_MIGRATION_SOURCE_VERSIONS: readonly [0, 1, 2, 3];
export declare function migrateWorkflowDatabase(db: Database.Database): void;
export declare function openWorkflowDatabase(databasePath?: string): Database.Database;
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