import type { MigrationContext, ReversibleMigration } from '../migration-types';
export declare class ReplaceAgentObservationTables1784000000001 implements ReversibleMigration {
    up({ schemaBuilder: { createTable, dropTable, column } }: MigrationContext): Promise<void>;
    down({ schemaBuilder: { createTable, dropTable, column } }: MigrationContext): Promise<void>;
    private dropObservationTables;
    private createObservationLogTables;
    private createLegacyObservationTables;
}