import type { MigrationContext } from '../migration-types';
export declare const FK_NAME = "FK_instance_ai_threads_projectId";
export declare const THREADS_TABLE = "instance_ai_threads";
export declare const PROJECT_ID_COLUMN = "projectId";
export declare const PROJECT_ID_COMMENT = "Project this thread is scoped to";
export declare abstract class AddProjectIdToInstanceAiThreadBase {
    protected backfillUserThreads({ runQuery, escape }: MigrationContext): Promise<void>;
    protected backfillSubAgentThreads({ runQuery, escape }: MigrationContext): Promise<void>;
    protected backfillRemainingToInstanceOwner({ runQuery, escape }: MigrationContext): Promise<void>;
    protected deleteUnmappableThreads({ runQuery, escape, logger, migrationName, }: MigrationContext): Promise<void>;
}