import { GenericDAO } from "./GenericDAO";
export interface ReduceableDAO<T> extends GenericDAO<T> {
    /**
     * Reduce all records sharing a same reduction key that written before given block number.
     * @param {number} belowNumber All records written strictly under `belowNumber` have to be reduced on the reduction key.
     * @returns {Promise<void>}
     */
    trimRecords(belowNumber: number): Promise<void>;
}