import type { MigrationContext, ReversibleMigration } from '../migration-types';
export declare class AddAgentFileStorageColumns1785186578138 implements ReversibleMigration {
    up(ctx: MigrationContext): Promise<void>;
    down(ctx: MigrationContext): Promise<void>;
    private backfillFromBinaryDataIds;
    private restoreMissingBinaryDataIds;
}