import { CalculatedField, Context, App, Queries, Collection, CollectionItem } from "../../../main.js";
type StagesGetter = (context: Context, item: CollectionItem, db_document: any) => Queries.QueryStage[];
export default class Aggregate extends CalculatedField<any> {
    name: string;
    stages_getter: StagesGetter;
    constructor(app: App, collection: Collection, stages_getter: StagesGetter);
    calculate(context: Context, item: CollectionItem, db_document: any): Promise<any>;
}
export {};