import type { MigrationContext, ReversibleMigration } from '../migration-types';
export declare class AddExecutionDeduplicationKey1778000000000 implements ReversibleMigration {
    up({ schemaBuilder: { addColumns, column, createIndex } }: MigrationContext): Promise<void>;
    down({ schemaBuilder: { dropIndex, dropColumns } }: MigrationContext): Promise<void>;
}