import type { MigrationContext, ReversibleMigration } from '../migration-types';
export declare class AddReportDateToInstanceMonitoringReport1790583238183 implements ReversibleMigration {
    up(context: MigrationContext): Promise<void>;
    down({ schemaBuilder: { dropIndex, dropColumns } }: MigrationContext): Promise<void>;
    private backfillReportDate;
    private clearDuplicateDays;
}